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Finding the Third Proportional to 379,290 and 814,812

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Solution

The third proportional to 379,290 and 814,812 is: 1,750,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,290 : 814,812 = 814,812 : x
  2. Step 2: Convert to fraction form
    379,290/814,812 = 814,812/x
  3. Step 3: Cross multiply
    379,290x = 814,812 × 814,812
  4. Step 4: Simplify right side
    379,290x = 663,918,595,344
  5. Step 5: Solve for x
    x = 663,918,595,344/379,290
  6. Step 6: Final answer
    x = 1,750,424.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.