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Finding the Third Proportional to 316,392.75 and 682,512.75

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Solution

The third proportional to 316,392.75 and 682,512.75 is: 1,472,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,392.75 : 682,512.75 = 682,512.75 : x
  2. Step 2: Convert to fraction form
    316,392.75/682,512.75 = 682,512.75/x
  3. Step 3: Cross multiply
    316,392.75x = 682,512.75 × 682,512.75
  4. Step 4: Simplify right side
    316,392.75x = 465,823,653,912.56
  5. Step 5: Solve for x
    x = 465,823,653,912.56/316,392.75
  6. Step 6: Final answer
    x = 1,472,295.60

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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.