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Finding the Fourth Proportional to 950.08, 1,311.20 and 577.04

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Solution

The fourth proportional to 950.08, 1,311.20 and 577.04 is: 796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.08 : 1,311.20 = 577.04 : x
  2. Step 2: Convert to fraction form
    950.08/1,311.20 = 577.04/x
  3. Step 3: Cross multiply
    950.08x = 1,311.20 × 577.04
  4. Step 4: Simplify right side
    950.08x = 756,614.85
  5. Step 5: Solve for x
    x = 756,614.85/950.08
  6. Step 6: Final answer
    x = 796.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.