Yes, there is strong Scriptural precedent for the practice of approaching prophets with specific questions or requests (1 Sam 9:6, 18-20; 1 Kings 3:10-27; 22:1-18). However, you should bear in mind that God may or may not allow the prophet to specifically answer or address these questions in a way that is acceptable to you (Num 22:20, 38; 23:11, 12, 26; 24:12, 13). In fact, it is possible that God may choose to forbid the prophet from answering or to hide the matter from him altogether (2 Kings 4:27). If this is the case and you are not given a clear answer, do not be discouraged; it is probably not the Lord’s time to make this matter known, or through these means.