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Finding the Third Proportional to 338,472 and 743,380

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Solution

The third proportional to 338,472 and 743,380 is: 1,632,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,472 : 743,380 = 743,380 : x
  2. Step 2: Convert to fraction form
    338,472/743,380 = 743,380/x
  3. Step 3: Cross multiply
    338,472x = 743,380 × 743,380
  4. Step 4: Simplify right side
    338,472x = 552,613,824,400
  5. Step 5: Solve for x
    x = 552,613,824,400/338,472
  6. Step 6: Final answer
    x = 1,632,672.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.