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Finding the Third Proportional to 442,560 and 636,192

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Solution

The third proportional to 442,560 and 636,192 is: 914,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,560 : 636,192 = 636,192 : x
  2. Step 2: Convert to fraction form
    442,560/636,192 = 636,192/x
  3. Step 3: Cross multiply
    442,560x = 636,192 × 636,192
  4. Step 4: Simplify right side
    442,560x = 404,740,260,864
  5. Step 5: Solve for x
    x = 404,740,260,864/442,560
  6. Step 6: Final answer
    x = 914,543.25

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.