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Finding the Fourth Proportional to 501,532.28, 752,419.92 and 288,436.58

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Solution

The fourth proportional to 501,532.28, 752,419.92 and 288,436.58 is: 432,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,532.28 : 752,419.92 = 288,436.58 : x
  2. Step 2: Convert to fraction form
    501,532.28/752,419.92 = 288,436.58/x
  3. Step 3: Cross multiply
    501,532.28x = 752,419.92 × 288,436.58
  4. Step 4: Simplify right side
    501,532.28x = 217,025,428,448.67
  5. Step 5: Solve for x
    x = 217,025,428,448.67/501,532.28
  6. Step 6: Final answer
    x = 432,724.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.