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Finding the Third Proportional to 636,660 and 993,738

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Solution

The third proportional to 636,660 and 993,738 is: 1,551,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,660 : 993,738 = 993,738 : x
  2. Step 2: Convert to fraction form
    636,660/993,738 = 993,738/x
  3. Step 3: Cross multiply
    636,660x = 993,738 × 993,738
  4. Step 4: Simplify right side
    636,660x = 987,515,212,644
  5. Step 5: Solve for x
    x = 987,515,212,644/636,660
  6. Step 6: Final answer
    x = 1,551,087.26

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.