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Finding the Fourth Proportional to 502,451.79, 753,254.03 and 217,928.15

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Solution

The fourth proportional to 502,451.79, 753,254.03 and 217,928.15 is: 326,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,451.79 : 753,254.03 = 217,928.15 : x
  2. Step 2: Convert to fraction form
    502,451.79/753,254.03 = 217,928.15/x
  3. Step 3: Cross multiply
    502,451.79x = 753,254.03 × 217,928.15
  4. Step 4: Simplify right side
    502,451.79x = 164,155,256,841.20
  5. Step 5: Solve for x
    x = 164,155,256,841.20/502,451.79
  6. Step 6: Final answer
    x = 326,708.47

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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.