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Finding the Third Proportional to 422,508 and 939,486

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Solution

The third proportional to 422,508 and 939,486 is: 2,089,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,508 : 939,486 = 939,486 : x
  2. Step 2: Convert to fraction form
    422,508/939,486 = 939,486/x
  3. Step 3: Cross multiply
    422,508x = 939,486 × 939,486
  4. Step 4: Simplify right side
    422,508x = 882,633,944,196
  5. Step 5: Solve for x
    x = 882,633,944,196/422,508
  6. Step 6: Final answer
    x = 2,089,034.87

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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.