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Finding the Third Proportional to 641,846 and 993,873

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Solution

The third proportional to 641,846 and 993,873 is: 1,538,972.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,846 : 993,873 = 993,873 : x
  2. Step 2: Convert to fraction form
    641,846/993,873 = 993,873/x
  3. Step 3: Cross multiply
    641,846x = 993,873 × 993,873
  4. Step 4: Simplify right side
    641,846x = 987,783,540,129
  5. Step 5: Solve for x
    x = 987,783,540,129/641,846
  6. Step 6: Final answer
    x = 1,538,972.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.