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Finding the Fourth Proportional to 981,793.72, 1,472,708.96 and 307,860.24

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Solution

The fourth proportional to 981,793.72, 1,472,708.96 and 307,860.24 is: 461,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,793.72 : 1,472,708.96 = 307,860.24 : x
  2. Step 2: Convert to fraction form
    981,793.72/1,472,708.96 = 307,860.24/x
  3. Step 3: Cross multiply
    981,793.72x = 1,472,708.96 × 307,860.24
  4. Step 4: Simplify right side
    981,793.72x = 453,388,533,875.75
  5. Step 5: Solve for x
    x = 453,388,533,875.75/981,793.72
  6. Step 6: Final answer
    x = 461,796.12

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1.5x scale

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.