Home / 1,480.16-2,220.24-440.53

Finding the Fourth Proportional to 1,480.16, 2,220.24 and 440.53

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Solution

The fourth proportional to 1,480.16, 2,220.24 and 440.53 is: 660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.16 : 2,220.24 = 440.53 : x
  2. Step 2: Convert to fraction form
    1,480.16/2,220.24 = 440.53/x
  3. Step 3: Cross multiply
    1,480.16x = 2,220.24 × 440.53
  4. Step 4: Simplify right side
    1,480.16x = 978,073.45
  5. Step 5: Solve for x
    x = 978,073.45/1,480.16
  6. Step 6: Final answer
    x = 660.79

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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.