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Finding the Fourth Proportional to 538,277.80, 809,166.30 and 381,591.40

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Solution

The fourth proportional to 538,277.80, 809,166.30 and 381,591.40 is: 573,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,277.80 : 809,166.30 = 381,591.40 : x
  2. Step 2: Convert to fraction form
    538,277.80/809,166.30 = 381,591.40/x
  3. Step 3: Cross multiply
    538,277.80x = 809,166.30 × 381,591.40
  4. Step 4: Simplify right side
    538,277.80x = 308,770,901,249.82
  5. Step 5: Solve for x
    x = 308,770,901,249.82/538,277.80
  6. Step 6: Final answer
    x = 573,627.41

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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.