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Finding the Fourth Proportional to 479.75, 716.04 and 441.28

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Solution

The fourth proportional to 479.75, 716.04 and 441.28 is: 658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.75 : 716.04 = 441.28 : x
  2. Step 2: Convert to fraction form
    479.75/716.04 = 441.28/x
  3. Step 3: Cross multiply
    479.75x = 716.04 × 441.28
  4. Step 4: Simplify right side
    479.75x = 315,971.51
  5. Step 5: Solve for x
    x = 315,971.51/479.75
  6. Step 6: Final answer
    x = 658.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.