Home / 1,028.46-1,542.06-480.36

Finding the Fourth Proportional to 1,028.46, 1,542.06 and 480.36

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Solution

The fourth proportional to 1,028.46, 1,542.06 and 480.36 is: 720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.46 : 1,542.06 = 480.36 : x
  2. Step 2: Convert to fraction form
    1,028.46/1,542.06 = 480.36/x
  3. Step 3: Cross multiply
    1,028.46x = 1,542.06 × 480.36
  4. Step 4: Simplify right side
    1,028.46x = 740,743.94
  5. Step 5: Solve for x
    x = 740,743.94/1,028.46
  6. Step 6: Final answer
    x = 720.25

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Double scale
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1.5x scale

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.