Home / 850.20-1,269.50-750.54

Finding the Fourth Proportional to 850.20, 1,269.50 and 750.54

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Solution

The fourth proportional to 850.20, 1,269.50 and 750.54 is: 1,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.20 : 1,269.50 = 750.54 : x
  2. Step 2: Convert to fraction form
    850.20/1,269.50 = 750.54/x
  3. Step 3: Cross multiply
    850.20x = 1,269.50 × 750.54
  4. Step 4: Simplify right side
    850.20x = 952,810.53
  5. Step 5: Solve for x
    x = 952,810.53/850.20
  6. Step 6: Final answer
    x = 1,120.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.