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Finding the Fourth Proportional to 981,475.77, 1,472,214 and 307,609.36

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Solution

The fourth proportional to 981,475.77, 1,472,214 and 307,609.36 is: 461,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,475.77 : 1,472,214 = 307,609.36 : x
  2. Step 2: Convert to fraction form
    981,475.77/1,472,214 = 307,609.36/x
  3. Step 3: Cross multiply
    981,475.77x = 1,472,214 × 307,609.36
  4. Step 4: Simplify right side
    981,475.77x = 452,866,806,323.04
  5. Step 5: Solve for x
    x = 452,866,806,323.04/981,475.77
  6. Step 6: Final answer
    x = 461,414.15

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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.