Home / 981,234.30-1,472,422.41-412,574.16

Finding the Fourth Proportional to 981,234.30, 1,472,422.41 and 412,574.16

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Solution

The fourth proportional to 981,234.30, 1,472,422.41 and 412,574.16 is: 619,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,234.30 : 1,472,422.41 = 412,574.16 : x
  2. Step 2: Convert to fraction form
    981,234.30/1,472,422.41 = 412,574.16/x
  3. Step 3: Cross multiply
    981,234.30x = 1,472,422.41 × 412,574.16
  4. Step 4: Simplify right side
    981,234.30x = 607,483,438,970.93
  5. Step 5: Solve for x
    x = 607,483,438,970.93/981,234.30
  6. Step 6: Final answer
    x = 619,101.31

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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.