Home / 1,060.20-1,590.35-329.79

Finding the Fourth Proportional to 1,060.20, 1,590.35 and 329.79

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Solution

The fourth proportional to 1,060.20, 1,590.35 and 329.79 is: 494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.20 : 1,590.35 = 329.79 : x
  2. Step 2: Convert to fraction form
    1,060.20/1,590.35 = 329.79/x
  3. Step 3: Cross multiply
    1,060.20x = 1,590.35 × 329.79
  4. Step 4: Simplify right side
    1,060.20x = 524,479.88
  5. Step 5: Solve for x
    x = 524,479.88/1,060.20
  6. Step 6: Final answer
    x = 494.70

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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.