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Finding the Fourth Proportional to 960.63, 1,441.17 and 527.70

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Solution

The fourth proportional to 960.63, 1,441.17 and 527.70 is: 791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.63 : 1,441.17 = 527.70 : x
  2. Step 2: Convert to fraction form
    960.63/1,441.17 = 527.70/x
  3. Step 3: Cross multiply
    960.63x = 1,441.17 × 527.70
  4. Step 4: Simplify right side
    960.63x = 760,505.41
  5. Step 5: Solve for x
    x = 760,505.41/960.63
  6. Step 6: Final answer
    x = 791.67

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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.