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Finding the Third Proportional to 397,350.56 and 868,978.13

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Solution

The third proportional to 397,350.56 and 868,978.13 is: 1,900,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,350.56 : 868,978.13 = 868,978.13 : x
  2. Step 2: Convert to fraction form
    397,350.56/868,978.13 = 868,978.13/x
  3. Step 3: Cross multiply
    397,350.56x = 868,978.13 × 868,978.13
  4. Step 4: Simplify right side
    397,350.56x = 755,122,981,728.52
  5. Step 5: Solve for x
    x = 755,122,981,728.52/397,350.56
  6. Step 6: Final answer
    x = 1,900,394.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.