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Finding the Third Proportional to 327,520 and 694,408

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Solution

The third proportional to 327,520 and 694,408 is: 1,472,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,520 : 694,408 = 694,408 : x
  2. Step 2: Convert to fraction form
    327,520/694,408 = 694,408/x
  3. Step 3: Cross multiply
    327,520x = 694,408 × 694,408
  4. Step 4: Simplify right side
    327,520x = 482,202,470,464
  5. Step 5: Solve for x
    x = 482,202,470,464/327,520
  6. Step 6: Final answer
    x = 1,472,284.05

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.