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Finding the Fourth Proportional to 634.09, 949.30 and 403.24

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Solution

The fourth proportional to 634.09, 949.30 and 403.24 is: 603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.09 : 949.30 = 403.24 : x
  2. Step 2: Convert to fraction form
    634.09/949.30 = 403.24/x
  3. Step 3: Cross multiply
    634.09x = 949.30 × 403.24
  4. Step 4: Simplify right side
    634.09x = 382,795.73
  5. Step 5: Solve for x
    x = 382,795.73/634.09
  6. Step 6: Final answer
    x = 603.69

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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.