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Finding the Third Proportional to 815,754 and 1,240,902

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Solution

The third proportional to 815,754 and 1,240,902 is: 1,887,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,754 : 1,240,902 = 1,240,902 : x
  2. Step 2: Convert to fraction form
    815,754/1,240,902 = 1,240,902/x
  3. Step 3: Cross multiply
    815,754x = 1,240,902 × 1,240,902
  4. Step 4: Simplify right side
    815,754x = 1,539,837,773,604
  5. Step 5: Solve for x
    x = 1,539,837,773,604/815,754
  6. Step 6: Final answer
    x = 1,887,625.16

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.