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Finding the Third Proportional to 499,367 and 782,519

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Solution

The third proportional to 499,367 and 782,519 is: 1,226,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,367 : 782,519 = 782,519 : x
  2. Step 2: Convert to fraction form
    499,367/782,519 = 782,519/x
  3. Step 3: Cross multiply
    499,367x = 782,519 × 782,519
  4. Step 4: Simplify right side
    499,367x = 612,335,985,361
  5. Step 5: Solve for x
    x = 612,335,985,361/499,367
  6. Step 6: Final answer
    x = 1,226,224.37

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.