Home / 1,028.22-1,541.25-479.95

Finding the Fourth Proportional to 1,028.22, 1,541.25 and 479.95

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Solution

The fourth proportional to 1,028.22, 1,541.25 and 479.95 is: 719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.22 : 1,541.25 = 479.95 : x
  2. Step 2: Convert to fraction form
    1,028.22/1,541.25 = 479.95/x
  3. Step 3: Cross multiply
    1,028.22x = 1,541.25 × 479.95
  4. Step 4: Simplify right side
    1,028.22x = 739,722.94
  5. Step 5: Solve for x
    x = 739,722.94/1,028.22
  6. Step 6: Final answer
    x = 719.42

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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.