Home / 1,443.24-2,163.04-620.56

Finding the Fourth Proportional to 1,443.24, 2,163.04 and 620.56

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Solution

The fourth proportional to 1,443.24, 2,163.04 and 620.56 is: 930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.24 : 2,163.04 = 620.56 : x
  2. Step 2: Convert to fraction form
    1,443.24/2,163.04 = 620.56/x
  3. Step 3: Cross multiply
    1,443.24x = 2,163.04 × 620.56
  4. Step 4: Simplify right side
    1,443.24x = 1,342,296.10
  5. Step 5: Solve for x
    x = 1,342,296.10/1,443.24
  6. Step 6: Final answer
    x = 930.06

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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.