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Finding the Fourth Proportional to 559.25, 838.79 and 396.44

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Solution

The fourth proportional to 559.25, 838.79 and 396.44 is: 594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.25 : 838.79 = 396.44 : x
  2. Step 2: Convert to fraction form
    559.25/838.79 = 396.44/x
  3. Step 3: Cross multiply
    559.25x = 838.79 × 396.44
  4. Step 4: Simplify right side
    559.25x = 332,527.93
  5. Step 5: Solve for x
    x = 332,527.93/559.25
  6. Step 6: Final answer
    x = 594.60

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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.