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Finding the Third Proportional to 285,484 and 627,464

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Solution

The third proportional to 285,484 and 627,464 is: 1,379,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,484 : 627,464 = 627,464 : x
  2. Step 2: Convert to fraction form
    285,484/627,464 = 627,464/x
  3. Step 3: Cross multiply
    285,484x = 627,464 × 627,464
  4. Step 4: Simplify right side
    285,484x = 393,711,071,296
  5. Step 5: Solve for x
    x = 393,711,071,296/285,484
  6. Step 6: Final answer
    x = 1,379,100.30

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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.