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Finding the Third Proportional to 371,920 and 763,442

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Solution

The third proportional to 371,920 and 763,442 is: 1,567,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,920 : 763,442 = 763,442 : x
  2. Step 2: Convert to fraction form
    371,920/763,442 = 763,442/x
  3. Step 3: Cross multiply
    371,920x = 763,442 × 763,442
  4. Step 4: Simplify right side
    371,920x = 582,843,687,364
  5. Step 5: Solve for x
    x = 582,843,687,364/371,920
  6. Step 6: Final answer
    x = 1,567,121.12

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.