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Finding the Fourth Proportional to 496.48, 743.94 and 419.08

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Solution

The fourth proportional to 496.48, 743.94 and 419.08 is: 627.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.48 : 743.94 = 419.08 : x
  2. Step 2: Convert to fraction form
    496.48/743.94 = 419.08/x
  3. Step 3: Cross multiply
    496.48x = 743.94 × 419.08
  4. Step 4: Simplify right side
    496.48x = 311,770.38
  5. Step 5: Solve for x
    x = 311,770.38/496.48
  6. Step 6: Final answer
    x = 627.96

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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.