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Finding the Third Proportional to 273,694 and 409,449

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Solution

The third proportional to 273,694 and 409,449 is: 612,539.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,694 : 409,449 = 409,449 : x
  2. Step 2: Convert to fraction form
    273,694/409,449 = 409,449/x
  3. Step 3: Cross multiply
    273,694x = 409,449 × 409,449
  4. Step 4: Simplify right side
    273,694x = 167,648,483,601
  5. Step 5: Solve for x
    x = 167,648,483,601/273,694
  6. Step 6: Final answer
    x = 612,539.86

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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.