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Finding the Third Proportional to 381,481 and 828,506

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Solution

The third proportional to 381,481 and 828,506 is: 1,799,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,481 : 828,506 = 828,506 : x
  2. Step 2: Convert to fraction form
    381,481/828,506 = 828,506/x
  3. Step 3: Cross multiply
    381,481x = 828,506 × 828,506
  4. Step 4: Simplify right side
    381,481x = 686,422,192,036
  5. Step 5: Solve for x
    x = 686,422,192,036/381,481
  6. Step 6: Final answer
    x = 1,799,361.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.