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Finding the Third Proportional to 311,204 and 633,820

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Solution

The third proportional to 311,204 and 633,820 is: 1,290,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,204 : 633,820 = 633,820 : x
  2. Step 2: Convert to fraction form
    311,204/633,820 = 633,820/x
  3. Step 3: Cross multiply
    311,204x = 633,820 × 633,820
  4. Step 4: Simplify right side
    311,204x = 401,727,792,400
  5. Step 5: Solve for x
    x = 401,727,792,400/311,204
  6. Step 6: Final answer
    x = 1,290,882.48

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.