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Finding the Third Proportional to 635,847 and 891,138

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Solution

The third proportional to 635,847 and 891,138 is: 1,248,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,847 : 891,138 = 891,138 : x
  2. Step 2: Convert to fraction form
    635,847/891,138 = 891,138/x
  3. Step 3: Cross multiply
    635,847x = 891,138 × 891,138
  4. Step 4: Simplify right side
    635,847x = 794,126,935,044
  5. Step 5: Solve for x
    x = 794,126,935,044/635,847
  6. Step 6: Final answer
    x = 1,248,927.71

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.