Home / 981,449.75-1,472,244.62-261,787.43

Finding the Fourth Proportional to 981,449.75, 1,472,244.62 and 261,787.43

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Solution

The fourth proportional to 981,449.75, 1,472,244.62 and 261,787.43 is: 392,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,449.75 : 1,472,244.62 = 261,787.43 : x
  2. Step 2: Convert to fraction form
    981,449.75/1,472,244.62 = 261,787.43/x
  3. Step 3: Cross multiply
    981,449.75x = 1,472,244.62 × 261,787.43
  4. Step 4: Simplify right side
    981,449.75x = 385,415,126,730.97
  5. Step 5: Solve for x
    x = 385,415,126,730.97/981,449.75
  6. Step 6: Final answer
    x = 392,699.81

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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.