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Finding the Third Proportional to 323,720 and 711,676

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Solution

The third proportional to 323,720 and 711,676 is: 1,564,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,720 : 711,676 = 711,676 : x
  2. Step 2: Convert to fraction form
    323,720/711,676 = 711,676/x
  3. Step 3: Cross multiply
    323,720x = 711,676 × 711,676
  4. Step 4: Simplify right side
    323,720x = 506,482,728,976
  5. Step 5: Solve for x
    x = 506,482,728,976/323,720
  6. Step 6: Final answer
    x = 1,564,570.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.