Home / 1,190.19-1,785.33-324.50

Finding the Fourth Proportional to 1,190.19, 1,785.33 and 324.50

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Solution

The fourth proportional to 1,190.19, 1,785.33 and 324.50 is: 486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.19 : 1,785.33 = 324.50 : x
  2. Step 2: Convert to fraction form
    1,190.19/1,785.33 = 324.50/x
  3. Step 3: Cross multiply
    1,190.19x = 1,785.33 × 324.50
  4. Step 4: Simplify right side
    1,190.19x = 579,339.59
  5. Step 5: Solve for x
    x = 579,339.59/1,190.19
  6. Step 6: Final answer
    x = 486.76

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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.