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Finding the Third Proportional to 397,279.27 and 868,829.20

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Solution

The third proportional to 397,279.27 and 868,829.20 is: 1,900,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,279.27 : 868,829.20 = 868,829.20 : x
  2. Step 2: Convert to fraction form
    397,279.27/868,829.20 = 868,829.20/x
  3. Step 3: Cross multiply
    397,279.27x = 868,829.20 × 868,829.20
  4. Step 4: Simplify right side
    397,279.27x = 754,864,184,202.82
  5. Step 5: Solve for x
    x = 754,864,184,202.82/397,279.27
  6. Step 6: Final answer
    x = 1,900,084.52

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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.