Answer
Yes, John Jacob Astor IV was indeed the wealthiest passenger on board the ill-fated RMS Titanic. Astor, a prominent American businessman and real estate magnate, inherited his wealth from his father, William Backhouse Astor Jr. With an estimated net worth of over $85 million at the time (equivalent to approximately $2.2 billion today), Astor was among the richest men in the world.