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Finding the Third Proportional to 627,681 and 1,372,731

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Solution

The third proportional to 627,681 and 1,372,731 is: 3,002,146.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,681 : 1,372,731 = 1,372,731 : x
  2. Step 2: Convert to fraction form
    627,681/1,372,731 = 1,372,731/x
  3. Step 3: Cross multiply
    627,681x = 1,372,731 × 1,372,731
  4. Step 4: Simplify right side
    627,681x = 1,884,390,398,361
  5. Step 5: Solve for x
    x = 1,884,390,398,361/627,681
  6. Step 6: Final answer
    x = 3,002,146.63

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.