Home / 981,481.91-1,472,220.63-307,614.56

Finding the Fourth Proportional to 981,481.91, 1,472,220.63 and 307,614.56

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Solution

The fourth proportional to 981,481.91, 1,472,220.63 and 307,614.56 is: 461,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,481.91 : 1,472,220.63 = 307,614.56 : x
  2. Step 2: Convert to fraction form
    981,481.91/1,472,220.63 = 307,614.56/x
  3. Step 3: Cross multiply
    981,481.91x = 1,472,220.63 × 307,614.56
  4. Step 4: Simplify right side
    981,481.91x = 452,876,493,959.27
  5. Step 5: Solve for x
    x = 452,876,493,959.27/981,481.91
  6. Step 6: Final answer
    x = 461,421.13

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Double scale
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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.