Home / 981,397.36-1,472,096.06-271,425.40

Finding the Fourth Proportional to 981,397.36, 1,472,096.06 and 271,425.40

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Solution

The fourth proportional to 981,397.36, 1,472,096.06 and 271,425.40 is: 407,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,397.36 : 1,472,096.06 = 271,425.40 : x
  2. Step 2: Convert to fraction form
    981,397.36/1,472,096.06 = 271,425.40/x
  3. Step 3: Cross multiply
    981,397.36x = 1,472,096.06 × 271,425.40
  4. Step 4: Simplify right side
    981,397.36x = 399,564,261,923.92
  5. Step 5: Solve for x
    x = 399,564,261,923.92/981,397.36
  6. Step 6: Final answer
    x = 407,138.11

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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.