Home / 1,493.56-2,240.43-453.60

Finding the Fourth Proportional to 1,493.56, 2,240.43 and 453.60

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Solution

The fourth proportional to 1,493.56, 2,240.43 and 453.60 is: 680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.56 : 2,240.43 = 453.60 : x
  2. Step 2: Convert to fraction form
    1,493.56/2,240.43 = 453.60/x
  3. Step 3: Cross multiply
    1,493.56x = 2,240.43 × 453.60
  4. Step 4: Simplify right side
    1,493.56x = 1,016,259.26
  5. Step 5: Solve for x
    x = 1,016,259.26/1,493.56
  6. Step 6: Final answer
    x = 680.43

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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.