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Finding the Third Proportional to 422,266.50 and 622,228.50

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Solution

The third proportional to 422,266.50 and 622,228.50 is: 916,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,266.50 : 622,228.50 = 622,228.50 : x
  2. Step 2: Convert to fraction form
    422,266.50/622,228.50 = 622,228.50/x
  3. Step 3: Cross multiply
    422,266.50x = 622,228.50 × 622,228.50
  4. Step 4: Simplify right side
    422,266.50x = 387,168,306,212.25
  5. Step 5: Solve for x
    x = 387,168,306,212.25/422,266.50
  6. Step 6: Final answer
    x = 916,881.42

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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.