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Finding the Third Proportional to 627,543 and 1,292,238

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Solution

The third proportional to 627,543 and 1,292,238 is: 2,660,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,543 : 1,292,238 = 1,292,238 : x
  2. Step 2: Convert to fraction form
    627,543/1,292,238 = 1,292,238/x
  3. Step 3: Cross multiply
    627,543x = 1,292,238 × 1,292,238
  4. Step 4: Simplify right side
    627,543x = 1,669,879,048,644
  5. Step 5: Solve for x
    x = 1,669,879,048,644/627,543
  6. Step 6: Final answer
    x = 2,660,979.48

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.