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Finding the Third Proportional to 316,432.50 and 682,344

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Solution

The third proportional to 316,432.50 and 682,344 is: 1,471,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,432.50 : 682,344 = 682,344 : x
  2. Step 2: Convert to fraction form
    316,432.50/682,344 = 682,344/x
  3. Step 3: Cross multiply
    316,432.50x = 682,344 × 682,344
  4. Step 4: Simplify right side
    316,432.50x = 465,593,334,336
  5. Step 5: Solve for x
    x = 465,593,334,336/316,432.50
  6. Step 6: Final answer
    x = 1,471,382.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.