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Finding the Third Proportional to 391,997.75 and 552,037.75

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Solution

The third proportional to 391,997.75 and 552,037.75 is: 777,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,997.75 : 552,037.75 = 552,037.75 : x
  2. Step 2: Convert to fraction form
    391,997.75/552,037.75 = 552,037.75/x
  3. Step 3: Cross multiply
    391,997.75x = 552,037.75 × 552,037.75
  4. Step 4: Simplify right side
    391,997.75x = 304,745,677,425.06
  5. Step 5: Solve for x
    x = 304,745,677,425.06/391,997.75
  6. Step 6: Final answer
    x = 777,416.90

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.