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Finding the Third Proportional to 349,220 and 762,408

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Solution

The third proportional to 349,220 and 762,408 is: 1,664,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,220 : 762,408 = 762,408 : x
  2. Step 2: Convert to fraction form
    349,220/762,408 = 762,408/x
  3. Step 3: Cross multiply
    349,220x = 762,408 × 762,408
  4. Step 4: Simplify right side
    349,220x = 581,265,958,464
  5. Step 5: Solve for x
    x = 581,265,958,464/349,220
  6. Step 6: Final answer
    x = 1,664,469.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.