Home / 724,781.52-1,000,244.79-402,491.61

Finding the Fourth Proportional to 724,781.52, 1,000,244.79 and 402,491.61

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Solution

The fourth proportional to 724,781.52, 1,000,244.79 and 402,491.61 is: 555,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,781.52 : 1,000,244.79 = 402,491.61 : x
  2. Step 2: Convert to fraction form
    724,781.52/1,000,244.79 = 402,491.61/x
  3. Step 3: Cross multiply
    724,781.52x = 1,000,244.79 × 402,491.61
  4. Step 4: Simplify right side
    724,781.52x = 402,590,135,921.21
  5. Step 5: Solve for x
    x = 402,590,135,921.21/724,781.52
  6. Step 6: Final answer
    x = 555,464.13

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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.