Home / 724,463.88-999,740.52-402,165.72

Finding the Fourth Proportional to 724,463.88, 999,740.52 and 402,165.72

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Solution

The fourth proportional to 724,463.88, 999,740.52 and 402,165.72 is: 554,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,463.88 : 999,740.52 = 402,165.72 : x
  2. Step 2: Convert to fraction form
    724,463.88/999,740.52 = 402,165.72/x
  3. Step 3: Cross multiply
    724,463.88x = 999,740.52 × 402,165.72
  4. Step 4: Simplify right side
    724,463.88x = 402,061,366,038.97
  5. Step 5: Solve for x
    x = 402,061,366,038.97/724,463.88
  6. Step 6: Final answer
    x = 554,977.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.