Home / 850.20-1,173.38-500.88

Finding the Fourth Proportional to 850.20, 1,173.38 and 500.88

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Solution

The fourth proportional to 850.20, 1,173.38 and 500.88 is: 691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.20 : 1,173.38 = 500.88 : x
  2. Step 2: Convert to fraction form
    850.20/1,173.38 = 500.88/x
  3. Step 3: Cross multiply
    850.20x = 1,173.38 × 500.88
  4. Step 4: Simplify right side
    850.20x = 587,722.57
  5. Step 5: Solve for x
    x = 587,722.57/850.20
  6. Step 6: Final answer
    x = 691.28

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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.