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Finding the Fourth Proportional to 1,034.08, 1,550.74 and 449.05

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Solution

The fourth proportional to 1,034.08, 1,550.74 and 449.05 is: 673.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.08 : 1,550.74 = 449.05 : x
  2. Step 2: Convert to fraction form
    1,034.08/1,550.74 = 449.05/x
  3. Step 3: Cross multiply
    1,034.08x = 1,550.74 × 449.05
  4. Step 4: Simplify right side
    1,034.08x = 696,359.80
  5. Step 5: Solve for x
    x = 696,359.80/1,034.08
  6. Step 6: Final answer
    x = 673.41

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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.