Home / 981,470.45-1,472,205.89-307,551.62

Finding the Fourth Proportional to 981,470.45, 1,472,205.89 and 307,551.62

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Solution

The fourth proportional to 981,470.45, 1,472,205.89 and 307,551.62 is: 461,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,470.45 : 1,472,205.89 = 307,551.62 : x
  2. Step 2: Convert to fraction form
    981,470.45/1,472,205.89 = 307,551.62/x
  3. Step 3: Cross multiply
    981,470.45x = 1,472,205.89 × 307,551.62
  4. Step 4: Simplify right side
    981,470.45x = 452,779,310,892.44
  5. Step 5: Solve for x
    x = 452,779,310,892.44/981,470.45
  6. Step 6: Final answer
    x = 461,327.50

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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.