Home / 1,180.23-1,769.31-449.32

Finding the Fourth Proportional to 1,180.23, 1,769.31 and 449.32

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Solution

The fourth proportional to 1,180.23, 1,769.31 and 449.32 is: 673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.23 : 1,769.31 = 449.32 : x
  2. Step 2: Convert to fraction form
    1,180.23/1,769.31 = 449.32/x
  3. Step 3: Cross multiply
    1,180.23x = 1,769.31 × 449.32
  4. Step 4: Simplify right side
    1,180.23x = 794,986.37
  5. Step 5: Solve for x
    x = 794,986.37/1,180.23
  6. Step 6: Final answer
    x = 673.59

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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.