Home / 508,425.08-762,634.20-129,342.56

Finding the Fourth Proportional to 508,425.08, 762,634.20 and 129,342.56

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Solution

The fourth proportional to 508,425.08, 762,634.20 and 129,342.56 is: 194,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,425.08 : 762,634.20 = 129,342.56 : x
  2. Step 2: Convert to fraction form
    508,425.08/762,634.20 = 129,342.56/x
  3. Step 3: Cross multiply
    508,425.08x = 762,634.20 × 129,342.56
  4. Step 4: Simplify right side
    508,425.08x = 98,641,059,771.55
  5. Step 5: Solve for x
    x = 98,641,059,771.55/508,425.08
  6. Step 6: Final answer
    x = 194,012.97

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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.