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Finding the Fourth Proportional to 543,610.20, 814,896.90 and 423,600.60

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Solution

The fourth proportional to 543,610.20, 814,896.90 and 423,600.60 is: 634,996.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,610.20 : 814,896.90 = 423,600.60 : x
  2. Step 2: Convert to fraction form
    543,610.20/814,896.90 = 423,600.60/x
  3. Step 3: Cross multiply
    543,610.20x = 814,896.90 × 423,600.60
  4. Step 4: Simplify right side
    543,610.20x = 345,190,815,778.14
  5. Step 5: Solve for x
    x = 345,190,815,778.14/543,610.20
  6. Step 6: Final answer
    x = 634,996.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.