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Finding the Third Proportional to 292,012 and 627,680

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Solution

The third proportional to 292,012 and 627,680 is: 1,349,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,012 : 627,680 = 627,680 : x
  2. Step 2: Convert to fraction form
    292,012/627,680 = 627,680/x
  3. Step 3: Cross multiply
    292,012x = 627,680 × 627,680
  4. Step 4: Simplify right side
    292,012x = 393,982,182,400
  5. Step 5: Solve for x
    x = 393,982,182,400/292,012
  6. Step 6: Final answer
    x = 1,349,198.60

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.