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Finding the Third Proportional to 715,411 and 1,555,067

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Solution

The third proportional to 715,411 and 1,555,067 is: 3,380,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,411 : 1,555,067 = 1,555,067 : x
  2. Step 2: Convert to fraction form
    715,411/1,555,067 = 1,555,067/x
  3. Step 3: Cross multiply
    715,411x = 1,555,067 × 1,555,067
  4. Step 4: Simplify right side
    715,411x = 2,418,233,374,489
  5. Step 5: Solve for x
    x = 2,418,233,374,489/715,411
  6. Step 6: Final answer
    x = 3,380,201.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.