Home / 1,260.26-1,889.98-480.23

Finding the Fourth Proportional to 1,260.26, 1,889.98 and 480.23

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Solution

The fourth proportional to 1,260.26, 1,889.98 and 480.23 is: 720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.26 : 1,889.98 = 480.23 : x
  2. Step 2: Convert to fraction form
    1,260.26/1,889.98 = 480.23/x
  3. Step 3: Cross multiply
    1,260.26x = 1,889.98 × 480.23
  4. Step 4: Simplify right side
    1,260.26x = 907,624.23
  5. Step 5: Solve for x
    x = 907,624.23/1,260.26
  6. Step 6: Final answer
    x = 720.19

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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.