Home / 1,023.21-1,534.68-329.95

Finding the Fourth Proportional to 1,023.21, 1,534.68 and 329.95

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Solution

The fourth proportional to 1,023.21, 1,534.68 and 329.95 is: 494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.21 : 1,534.68 = 329.95 : x
  2. Step 2: Convert to fraction form
    1,023.21/1,534.68 = 329.95/x
  3. Step 3: Cross multiply
    1,023.21x = 1,534.68 × 329.95
  4. Step 4: Simplify right side
    1,023.21x = 506,367.67
  5. Step 5: Solve for x
    x = 506,367.67/1,023.21
  6. Step 6: Final answer
    x = 494.88

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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.