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Finding the Third Proportional to 387,469 and 853,548

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Solution

The third proportional to 387,469 and 853,548 is: 1,880,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,469 : 853,548 = 853,548 : x
  2. Step 2: Convert to fraction form
    387,469/853,548 = 853,548/x
  3. Step 3: Cross multiply
    387,469x = 853,548 × 853,548
  4. Step 4: Simplify right side
    387,469x = 728,544,188,304
  5. Step 5: Solve for x
    x = 728,544,188,304/387,469
  6. Step 6: Final answer
    x = 1,880,264.46

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.