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Finding the Third Proportional to 334,650 and 490,812

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Solution

The third proportional to 334,650 and 490,812 is: 719,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,650 : 490,812 = 490,812 : x
  2. Step 2: Convert to fraction form
    334,650/490,812 = 490,812/x
  3. Step 3: Cross multiply
    334,650x = 490,812 × 490,812
  4. Step 4: Simplify right side
    334,650x = 240,896,419,344
  5. Step 5: Solve for x
    x = 240,896,419,344/334,650
  6. Step 6: Final answer
    x = 719,845.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.