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Finding the Fourth Proportional to 967.09, 1,447.52 and 504.21

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Solution

The fourth proportional to 967.09, 1,447.52 and 504.21 is: 754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.09 : 1,447.52 = 504.21 : x
  2. Step 2: Convert to fraction form
    967.09/1,447.52 = 504.21/x
  3. Step 3: Cross multiply
    967.09x = 1,447.52 × 504.21
  4. Step 4: Simplify right side
    967.09x = 729,854.06
  5. Step 5: Solve for x
    x = 729,854.06/967.09
  6. Step 6: Final answer
    x = 754.69

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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.