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Finding the Third Proportional to 422,502 and 939,474

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Solution

The third proportional to 422,502 and 939,474 is: 2,089,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,502 : 939,474 = 939,474 : x
  2. Step 2: Convert to fraction form
    422,502/939,474 = 939,474/x
  3. Step 3: Cross multiply
    422,502x = 939,474 × 939,474
  4. Step 4: Simplify right side
    422,502x = 882,611,396,676
  5. Step 5: Solve for x
    x = 882,611,396,676/422,502
  6. Step 6: Final answer
    x = 2,089,011.17

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.