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Finding the Third Proportional to 543,940 and 764,636

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Solution

The third proportional to 543,940 and 764,636 is: 1,074,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,940 : 764,636 = 764,636 : x
  2. Step 2: Convert to fraction form
    543,940/764,636 = 764,636/x
  3. Step 3: Cross multiply
    543,940x = 764,636 × 764,636
  4. Step 4: Simplify right side
    543,940x = 584,668,212,496
  5. Step 5: Solve for x
    x = 584,668,212,496/543,940
  6. Step 6: Final answer
    x = 1,074,876.30

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.