Home / 1,028.37-1,542.89-480.25

Finding the Fourth Proportional to 1,028.37, 1,542.89 and 480.25

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Solution

The fourth proportional to 1,028.37, 1,542.89 and 480.25 is: 720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.37 : 1,542.89 = 480.25 : x
  2. Step 2: Convert to fraction form
    1,028.37/1,542.89 = 480.25/x
  3. Step 3: Cross multiply
    1,028.37x = 1,542.89 × 480.25
  4. Step 4: Simplify right side
    1,028.37x = 740,974.12
  5. Step 5: Solve for x
    x = 740,974.12/1,028.37
  6. Step 6: Final answer
    x = 720.53

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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.