Home / 981,572.45-1,472,377.13-307,638.83

Finding the Fourth Proportional to 981,572.45, 1,472,377.13 and 307,638.83

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Solution

The fourth proportional to 981,572.45, 1,472,377.13 and 307,638.83 is: 461,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,572.45 : 1,472,377.13 = 307,638.83 : x
  2. Step 2: Convert to fraction form
    981,572.45/1,472,377.13 = 307,638.83/x
  3. Step 3: Cross multiply
    981,572.45x = 1,472,377.13 × 307,638.83
  4. Step 4: Simplify right side
    981,572.45x = 452,960,368,691.88
  5. Step 5: Solve for x
    x = 452,960,368,691.88/981,572.45
  6. Step 6: Final answer
    x = 461,464.02

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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.