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Finding the Third Proportional to 636,915 and 994,131

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Solution

The third proportional to 636,915 and 994,131 is: 1,551,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,915 : 994,131 = 994,131 : x
  2. Step 2: Convert to fraction form
    636,915/994,131 = 994,131/x
  3. Step 3: Cross multiply
    636,915x = 994,131 × 994,131
  4. Step 4: Simplify right side
    636,915x = 988,296,445,161
  5. Step 5: Solve for x
    x = 988,296,445,161/636,915
  6. Step 6: Final answer
    x = 1,551,692.84

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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.