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Finding the Fourth Proportional to 573,571.82, 791,524.20 and 318,920.78

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Solution

The fourth proportional to 573,571.82, 791,524.20 and 318,920.78 is: 440,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,571.82 : 791,524.20 = 318,920.78 : x
  2. Step 2: Convert to fraction form
    573,571.82/791,524.20 = 318,920.78/x
  3. Step 3: Cross multiply
    573,571.82x = 791,524.20 × 318,920.78
  4. Step 4: Simplify right side
    573,571.82x = 252,433,515,252.88
  5. Step 5: Solve for x
    x = 252,433,515,252.88/573,571.82
  6. Step 6: Final answer
    x = 440,107.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.