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Finding the Third Proportional to 323,530 and 680,516

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Solution

The third proportional to 323,530 and 680,516 is: 1,431,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,530 : 680,516 = 680,516 : x
  2. Step 2: Convert to fraction form
    323,530/680,516 = 680,516/x
  3. Step 3: Cross multiply
    323,530x = 680,516 × 680,516
  4. Step 4: Simplify right side
    323,530x = 463,102,026,256
  5. Step 5: Solve for x
    x = 463,102,026,256/323,530
  6. Step 6: Final answer
    x = 1,431,403.66

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.