Home / 1,480.87-2,220.91-440.59

Finding the Fourth Proportional to 1,480.87, 2,220.91 and 440.59

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Solution

The fourth proportional to 1,480.87, 2,220.91 and 440.59 is: 660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.87 : 2,220.91 = 440.59 : x
  2. Step 2: Convert to fraction form
    1,480.87/2,220.91 = 440.59/x
  3. Step 3: Cross multiply
    1,480.87x = 2,220.91 × 440.59
  4. Step 4: Simplify right side
    1,480.87x = 978,510.74
  5. Step 5: Solve for x
    x = 978,510.74/1,480.87
  6. Step 6: Final answer
    x = 660.77

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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.