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Finding the Fourth Proportional to 958.45, 1,436.67 and 650.33

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Solution

The fourth proportional to 958.45, 1,436.67 and 650.33 is: 974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.45 : 1,436.67 = 650.33 : x
  2. Step 2: Convert to fraction form
    958.45/1,436.67 = 650.33/x
  3. Step 3: Cross multiply
    958.45x = 1,436.67 × 650.33
  4. Step 4: Simplify right side
    958.45x = 934,302.42
  5. Step 5: Solve for x
    x = 934,302.42/958.45
  6. Step 6: Final answer
    x = 974.81

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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.