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Finding the Third Proportional to 422,230.50 and 622,183.50

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Solution

The third proportional to 422,230.50 and 622,183.50 is: 916,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,230.50 : 622,183.50 = 622,183.50 : x
  2. Step 2: Convert to fraction form
    422,230.50/622,183.50 = 622,183.50/x
  3. Step 3: Cross multiply
    422,230.50x = 622,183.50 × 622,183.50
  4. Step 4: Simplify right side
    422,230.50x = 387,112,307,672.25
  5. Step 5: Solve for x
    x = 387,112,307,672.25/422,230.50
  6. Step 6: Final answer
    x = 916,826.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.