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Finding the Fourth Proportional to 634.94, 949.90 and 481.30

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Solution

The fourth proportional to 634.94, 949.90 and 481.30 is: 720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.94 : 949.90 = 481.30 : x
  2. Step 2: Convert to fraction form
    634.94/949.90 = 481.30/x
  3. Step 3: Cross multiply
    634.94x = 949.90 × 481.30
  4. Step 4: Simplify right side
    634.94x = 457,186.87
  5. Step 5: Solve for x
    x = 457,186.87/634.94
  6. Step 6: Final answer
    x = 720.05

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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.