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Finding the Fourth Proportional to 481.14, 720.50 and 417.05

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Solution

The fourth proportional to 481.14, 720.50 and 417.05 is: 624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.14 : 720.50 = 417.05 : x
  2. Step 2: Convert to fraction form
    481.14/720.50 = 417.05/x
  3. Step 3: Cross multiply
    481.14x = 720.50 × 417.05
  4. Step 4: Simplify right side
    481.14x = 300,481.54
  5. Step 5: Solve for x
    x = 300,481.54/481.14
  6. Step 6: Final answer
    x = 624.52

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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.