Home / 981,480.31-1,472,220.81-307,613.90

Finding the Fourth Proportional to 981,480.31, 1,472,220.81 and 307,613.90

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Solution

The fourth proportional to 981,480.31, 1,472,220.81 and 307,613.90 is: 461,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,480.31 : 1,472,220.81 = 307,613.90 : x
  2. Step 2: Convert to fraction form
    981,480.31/1,472,220.81 = 307,613.90/x
  3. Step 3: Cross multiply
    981,480.31x = 1,472,220.81 × 307,613.90
  4. Step 4: Simplify right side
    981,480.31x = 452,875,585,025.26
  5. Step 5: Solve for x
    x = 452,875,585,025.26/981,480.31
  6. Step 6: Final answer
    x = 461,420.96

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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.