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Finding the Third Proportional to 323,679.50 and 490,017

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Solution

The third proportional to 323,679.50 and 490,017 is: 741,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,679.50 : 490,017 = 490,017 : x
  2. Step 2: Convert to fraction form
    323,679.50/490,017 = 490,017/x
  3. Step 3: Cross multiply
    323,679.50x = 490,017 × 490,017
  4. Step 4: Simplify right side
    323,679.50x = 240,116,660,289
  5. Step 5: Solve for x
    x = 240,116,660,289/323,679.50
  6. Step 6: Final answer
    x = 741,834.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.