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Finding the Fourth Proportional to 981,705.92, 1,472,560.96 and 271,736

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Solution

The fourth proportional to 981,705.92, 1,472,560.96 and 271,736 is: 407,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,705.92 : 1,472,560.96 = 271,736 : x
  2. Step 2: Convert to fraction form
    981,705.92/1,472,560.96 = 271,736/x
  3. Step 3: Cross multiply
    981,705.92x = 1,472,560.96 × 271,736
  4. Step 4: Simplify right side
    981,705.92x = 400,147,825,026.56
  5. Step 5: Solve for x
    x = 400,147,825,026.56/981,705.92
  6. Step 6: Final answer
    x = 407,604.58

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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.