Home / 1,190.24-1,785.35-324.55

Finding the Fourth Proportional to 1,190.24, 1,785.35 and 324.55

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Solution

The fourth proportional to 1,190.24, 1,785.35 and 324.55 is: 486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.24 : 1,785.35 = 324.55 : x
  2. Step 2: Convert to fraction form
    1,190.24/1,785.35 = 324.55/x
  3. Step 3: Cross multiply
    1,190.24x = 1,785.35 × 324.55
  4. Step 4: Simplify right side
    1,190.24x = 579,435.34
  5. Step 5: Solve for x
    x = 579,435.34/1,190.24
  6. Step 6: Final answer
    x = 486.82

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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.