Home / 1,149.54-1,723.26-418.94

Finding the Fourth Proportional to 1,149.54, 1,723.26 and 418.94

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Solution

The fourth proportional to 1,149.54, 1,723.26 and 418.94 is: 628.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.54 : 1,723.26 = 418.94 : x
  2. Step 2: Convert to fraction form
    1,149.54/1,723.26 = 418.94/x
  3. Step 3: Cross multiply
    1,149.54x = 1,723.26 × 418.94
  4. Step 4: Simplify right side
    1,149.54x = 721,942.54
  5. Step 5: Solve for x
    x = 721,942.54/1,149.54
  6. Step 6: Final answer
    x = 628.03

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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.