Home / 1,452.24-2,178.56-478.44

Finding the Fourth Proportional to 1,452.24, 2,178.56 and 478.44

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Solution

The fourth proportional to 1,452.24, 2,178.56 and 478.44 is: 717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.24 : 2,178.56 = 478.44 : x
  2. Step 2: Convert to fraction form
    1,452.24/2,178.56 = 478.44/x
  3. Step 3: Cross multiply
    1,452.24x = 2,178.56 × 478.44
  4. Step 4: Simplify right side
    1,452.24x = 1,042,310.25
  5. Step 5: Solve for x
    x = 1,042,310.25/1,452.24
  6. Step 6: Final answer
    x = 717.73

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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.