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Finding the Third Proportional to 285,464 and 627,424

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Solution

The third proportional to 285,464 and 627,424 is: 1,379,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,464 : 627,424 = 627,424 : x
  2. Step 2: Convert to fraction form
    285,464/627,424 = 627,424/x
  3. Step 3: Cross multiply
    285,464x = 627,424 × 627,424
  4. Step 4: Simplify right side
    285,464x = 393,660,875,776
  5. Step 5: Solve for x
    x = 393,660,875,776/285,464
  6. Step 6: Final answer
    x = 1,379,021.09

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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.