Home / 1,244.90-1,867.05-514.69

Finding the Fourth Proportional to 1,244.90, 1,867.05 and 514.69

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Solution

The fourth proportional to 1,244.90, 1,867.05 and 514.69 is: 771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.90 : 1,867.05 = 514.69 : x
  2. Step 2: Convert to fraction form
    1,244.90/1,867.05 = 514.69/x
  3. Step 3: Cross multiply
    1,244.90x = 1,867.05 × 514.69
  4. Step 4: Simplify right side
    1,244.90x = 960,947.30
  5. Step 5: Solve for x
    x = 960,947.30/1,244.90
  6. Step 6: Final answer
    x = 771.91

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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.