Home / 850.20-1,275.68-504.19

Finding the Fourth Proportional to 850.20, 1,275.68 and 504.19

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Solution

The fourth proportional to 850.20, 1,275.68 and 504.19 is: 756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.20 : 1,275.68 = 504.19 : x
  2. Step 2: Convert to fraction form
    850.20/1,275.68 = 504.19/x
  3. Step 3: Cross multiply
    850.20x = 1,275.68 × 504.19
  4. Step 4: Simplify right side
    850.20x = 643,185.10
  5. Step 5: Solve for x
    x = 643,185.10/850.20
  6. Step 6: Final answer
    x = 756.51

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1.5x scale

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.