Home / 1,190.19-1,785.29-496.85

Finding the Fourth Proportional to 1,190.19, 1,785.29 and 496.85

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Solution

The fourth proportional to 1,190.19, 1,785.29 and 496.85 is: 745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.19 : 1,785.29 = 496.85 : x
  2. Step 2: Convert to fraction form
    1,190.19/1,785.29 = 496.85/x
  3. Step 3: Cross multiply
    1,190.19x = 1,785.29 × 496.85
  4. Step 4: Simplify right side
    1,190.19x = 887,021.34
  5. Step 5: Solve for x
    x = 887,021.34/1,190.19
  6. Step 6: Final answer
    x = 745.28

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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.