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Finding the Third Proportional to 631,330 and 1,380,757

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Solution

The third proportional to 631,330 and 1,380,757 is: 3,019,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,330 : 1,380,757 = 1,380,757 : x
  2. Step 2: Convert to fraction form
    631,330/1,380,757 = 1,380,757/x
  3. Step 3: Cross multiply
    631,330x = 1,380,757 × 1,380,757
  4. Step 4: Simplify right side
    631,330x = 1,906,489,893,049
  5. Step 5: Solve for x
    x = 1,906,489,893,049/631,330
  6. Step 6: Final answer
    x = 3,019,799.30

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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.