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Finding the Third Proportional to 283,440 and 622,170

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Solution

The third proportional to 283,440 and 622,170 is: 1,365,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,440 : 622,170 = 622,170 : x
  2. Step 2: Convert to fraction form
    283,440/622,170 = 622,170/x
  3. Step 3: Cross multiply
    283,440x = 622,170 × 622,170
  4. Step 4: Simplify right side
    283,440x = 387,095,508,900
  5. Step 5: Solve for x
    x = 387,095,508,900/283,440
  6. Step 6: Final answer
    x = 1,365,705.30

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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.