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Finding the Fourth Proportional to 1,609.80, 2,414.97 and 514.08

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Solution

The fourth proportional to 1,609.80, 2,414.97 and 514.08 is: 771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.80 : 2,414.97 = 514.08 : x
  2. Step 2: Convert to fraction form
    1,609.80/2,414.97 = 514.08/x
  3. Step 3: Cross multiply
    1,609.80x = 2,414.97 × 514.08
  4. Step 4: Simplify right side
    1,609.80x = 1,241,487.78
  5. Step 5: Solve for x
    x = 1,241,487.78/1,609.80
  6. Step 6: Final answer
    x = 771.21

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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.