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Finding the Fourth Proportional to 479.77, 720.24 and 375.98

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Solution

The fourth proportional to 479.77, 720.24 and 375.98 is: 564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.77 : 720.24 = 375.98 : x
  2. Step 2: Convert to fraction form
    479.77/720.24 = 375.98/x
  3. Step 3: Cross multiply
    479.77x = 720.24 × 375.98
  4. Step 4: Simplify right side
    479.77x = 270,791.62
  5. Step 5: Solve for x
    x = 270,791.62/479.77
  6. Step 6: Final answer
    x = 564.42

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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.