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Finding the Fourth Proportional to 527.26, 793.96 and 391.27

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Solution

The fourth proportional to 527.26, 793.96 and 391.27 is: 589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.26 : 793.96 = 391.27 : x
  2. Step 2: Convert to fraction form
    527.26/793.96 = 391.27/x
  3. Step 3: Cross multiply
    527.26x = 793.96 × 391.27
  4. Step 4: Simplify right side
    527.26x = 310,652.73
  5. Step 5: Solve for x
    x = 310,652.73/527.26
  6. Step 6: Final answer
    x = 589.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.