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Finding the Fourth Proportional to 379,535.98, 568,843.61 and 278,761.75

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Solution

The fourth proportional to 379,535.98, 568,843.61 and 278,761.75 is: 417,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,535.98 : 568,843.61 = 278,761.75 : x
  2. Step 2: Convert to fraction form
    379,535.98/568,843.61 = 278,761.75/x
  3. Step 3: Cross multiply
    379,535.98x = 568,843.61 × 278,761.75
  4. Step 4: Simplify right side
    379,535.98x = 158,571,842,151.78
  5. Step 5: Solve for x
    x = 158,571,842,151.78/379,535.98
  6. Step 6: Final answer
    x = 417,804.51

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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.