Home / 1,229.38-1,844.55-459.94

Finding the Fourth Proportional to 1,229.38, 1,844.55 and 459.94

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Solution

The fourth proportional to 1,229.38, 1,844.55 and 459.94 is: 690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.38 : 1,844.55 = 459.94 : x
  2. Step 2: Convert to fraction form
    1,229.38/1,844.55 = 459.94/x
  3. Step 3: Cross multiply
    1,229.38x = 1,844.55 × 459.94
  4. Step 4: Simplify right side
    1,229.38x = 848,382.33
  5. Step 5: Solve for x
    x = 848,382.33/1,229.38
  6. Step 6: Final answer
    x = 690.09

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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.