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Finding the Third Proportional to 316,321.50 and 682,468.50

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Solution

The third proportional to 316,321.50 and 682,468.50 is: 1,472,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,321.50 : 682,468.50 = 682,468.50 : x
  2. Step 2: Convert to fraction form
    316,321.50/682,468.50 = 682,468.50/x
  3. Step 3: Cross multiply
    316,321.50x = 682,468.50 × 682,468.50
  4. Step 4: Simplify right side
    316,321.50x = 465,763,253,492.25
  5. Step 5: Solve for x
    x = 465,763,253,492.25/316,321.50
  6. Step 6: Final answer
    x = 1,472,436.28

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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.