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Finding the Third Proportional to 552,690 and 878,856.75

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Solution

The third proportional to 552,690 and 878,856.75 is: 1,397,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,690 : 878,856.75 = 878,856.75 : x
  2. Step 2: Convert to fraction form
    552,690/878,856.75 = 878,856.75/x
  3. Step 3: Cross multiply
    552,690x = 878,856.75 × 878,856.75
  4. Step 4: Simplify right side
    552,690x = 772,389,187,020.56
  5. Step 5: Solve for x
    x = 772,389,187,020.56/552,690
  6. Step 6: Final answer
    x = 1,397,508.89

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.