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Finding the Fourth Proportional to 481.57, 716.58 and 479.95

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Solution

The fourth proportional to 481.57, 716.58 and 479.95 is: 714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.57 : 716.58 = 479.95 : x
  2. Step 2: Convert to fraction form
    481.57/716.58 = 479.95/x
  3. Step 3: Cross multiply
    481.57x = 716.58 × 479.95
  4. Step 4: Simplify right side
    481.57x = 343,922.57
  5. Step 5: Solve for x
    x = 343,922.57/481.57
  6. Step 6: Final answer
    x = 714.17

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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.