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Finding the Third Proportional to 402,545 and 822,568

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Solution

The third proportional to 402,545 and 822,568 is: 1,680,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,545 : 822,568 = 822,568 : x
  2. Step 2: Convert to fraction form
    402,545/822,568 = 822,568/x
  3. Step 3: Cross multiply
    402,545x = 822,568 × 822,568
  4. Step 4: Simplify right side
    402,545x = 676,618,114,624
  5. Step 5: Solve for x
    x = 676,618,114,624/402,545
  6. Step 6: Final answer
    x = 1,680,850.87

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.