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Finding the Fourth Proportional to 481.32, 718.66 and 472.82

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Solution

The fourth proportional to 481.32, 718.66 and 472.82 is: 705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.32 : 718.66 = 472.82 : x
  2. Step 2: Convert to fraction form
    481.32/718.66 = 472.82/x
  3. Step 3: Cross multiply
    481.32x = 718.66 × 472.82
  4. Step 4: Simplify right side
    481.32x = 339,793.82
  5. Step 5: Solve for x
    x = 339,793.82/481.32
  6. Step 6: Final answer
    x = 705.96

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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.