Home / 981,730.76-1,472,432.10-271,830.56

Finding the Fourth Proportional to 981,730.76, 1,472,432.10 and 271,830.56

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Solution

The fourth proportional to 981,730.76, 1,472,432.10 and 271,830.56 is: 407,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,730.76 : 1,472,432.10 = 271,830.56 : x
  2. Step 2: Convert to fraction form
    981,730.76/1,472,432.10 = 271,830.56/x
  3. Step 3: Cross multiply
    981,730.76x = 1,472,432.10 × 271,830.56
  4. Step 4: Simplify right side
    981,730.76x = 400,252,042,304.98
  5. Step 5: Solve for x
    x = 400,252,042,304.98/981,730.76
  6. Step 6: Final answer
    x = 407,700.42

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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.