Home / 981,728.46-1,472,428.66-271,828.26

Finding the Fourth Proportional to 981,728.46, 1,472,428.66 and 271,828.26

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Solution

The fourth proportional to 981,728.46, 1,472,428.66 and 271,828.26 is: 407,696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,728.46 : 1,472,428.66 = 271,828.26 : x
  2. Step 2: Convert to fraction form
    981,728.46/1,472,428.66 = 271,828.26/x
  3. Step 3: Cross multiply
    981,728.46x = 1,472,428.66 × 271,828.26
  4. Step 4: Simplify right side
    981,728.46x = 400,247,720,621.93
  5. Step 5: Solve for x
    x = 400,247,720,621.93/981,728.46
  6. Step 6: Final answer
    x = 407,696.97

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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.