Home / 498,593.81-688,061.28-272,239.31

Finding the Fourth Proportional to 498,593.81, 688,061.28 and 272,239.31

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Solution

The fourth proportional to 498,593.81, 688,061.28 and 272,239.31 is: 375,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,593.81 : 688,061.28 = 272,239.31 : x
  2. Step 2: Convert to fraction form
    498,593.81/688,061.28 = 272,239.31/x
  3. Step 3: Cross multiply
    498,593.81x = 688,061.28 × 272,239.31
  4. Step 4: Simplify right side
    498,593.81x = 187,317,330,845.97
  5. Step 5: Solve for x
    x = 187,317,330,845.97/498,593.81
  6. Step 6: Final answer
    x = 375,691.25

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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.