Home / 725,456.68-1,001,132.28-403,165.78

Finding the Fourth Proportional to 725,456.68, 1,001,132.28 and 403,165.78

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Solution

The fourth proportional to 725,456.68, 1,001,132.28 and 403,165.78 is: 556,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,456.68 : 1,001,132.28 = 403,165.78 : x
  2. Step 2: Convert to fraction form
    725,456.68/1,001,132.28 = 403,165.78/x
  3. Step 3: Cross multiply
    725,456.68x = 1,001,132.28 × 403,165.78
  4. Step 4: Simplify right side
    725,456.68x = 403,622,276,549.38
  5. Step 5: Solve for x
    x = 403,622,276,549.38/725,456.68
  6. Step 6: Final answer
    x = 556,369.92

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Double scale
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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.