Home / 724,469.47-999,717.73-402,154.10

Finding the Fourth Proportional to 724,469.47, 999,717.73 and 402,154.10

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Solution

The fourth proportional to 724,469.47, 999,717.73 and 402,154.10 is: 554,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,469.47 : 999,717.73 = 402,154.10 : x
  2. Step 2: Convert to fraction form
    724,469.47/999,717.73 = 402,154.10/x
  3. Step 3: Cross multiply
    724,469.47x = 999,717.73 × 402,154.10
  4. Step 4: Simplify right side
    724,469.47x = 402,040,581,707.16
  5. Step 5: Solve for x
    x = 402,040,581,707.16/724,469.47
  6. Step 6: Final answer
    x = 554,944.82

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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.