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Finding the Third Proportional to 283,438 and 622,165

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Solution

The third proportional to 283,438 and 622,165 is: 1,365,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,438 : 622,165 = 622,165 : x
  2. Step 2: Convert to fraction form
    283,438/622,165 = 622,165/x
  3. Step 3: Cross multiply
    283,438x = 622,165 × 622,165
  4. Step 4: Simplify right side
    283,438x = 387,089,287,225
  5. Step 5: Solve for x
    x = 387,089,287,225/283,438
  6. Step 6: Final answer
    x = 1,365,692.98

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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.