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Finding the Fourth Proportional to 550,452.16, 758,920.72 and 356,517.28

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Solution

The fourth proportional to 550,452.16, 758,920.72 and 356,517.28 is: 491,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,452.16 : 758,920.72 = 356,517.28 : x
  2. Step 2: Convert to fraction form
    550,452.16/758,920.72 = 356,517.28/x
  3. Step 3: Cross multiply
    550,452.16x = 758,920.72 × 356,517.28
  4. Step 4: Simplify right side
    550,452.16x = 270,568,350,830.04
  5. Step 5: Solve for x
    x = 270,568,350,830.04/550,452.16
  6. Step 6: Final answer
    x = 491,538.36

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1.5x scale

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.