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Finding the Third Proportional to 379,838 and 887,387

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Solution

The third proportional to 379,838 and 887,387 is: 2,073,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,838 : 887,387 = 887,387 : x
  2. Step 2: Convert to fraction form
    379,838/887,387 = 887,387/x
  3. Step 3: Cross multiply
    379,838x = 887,387 × 887,387
  4. Step 4: Simplify right side
    379,838x = 787,455,687,769
  5. Step 5: Solve for x
    x = 787,455,687,769/379,838
  6. Step 6: Final answer
    x = 2,073,135.62

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.