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Finding the Fourth Proportional to 672,691.13, 928,321.02 and 366,765.03

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Solution

The fourth proportional to 672,691.13, 928,321.02 and 366,765.03 is: 506,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,691.13 : 928,321.02 = 366,765.03 : x
  2. Step 2: Convert to fraction form
    672,691.13/928,321.02 = 366,765.03/x
  3. Step 3: Cross multiply
    672,691.13x = 928,321.02 × 366,765.03
  4. Step 4: Simplify right side
    672,691.13x = 340,475,681,286.29
  5. Step 5: Solve for x
    x = 340,475,681,286.29/672,691.13
  6. Step 6: Final answer
    x = 506,139.69

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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.