Home / 1,233.50-1,850.55-400.57

Finding the Fourth Proportional to 1,233.50, 1,850.55 and 400.57

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Solution

The fourth proportional to 1,233.50, 1,850.55 and 400.57 is: 600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.50 : 1,850.55 = 400.57 : x
  2. Step 2: Convert to fraction form
    1,233.50/1,850.55 = 400.57/x
  3. Step 3: Cross multiply
    1,233.50x = 1,850.55 × 400.57
  4. Step 4: Simplify right side
    1,233.50x = 741,274.81
  5. Step 5: Solve for x
    x = 741,274.81/1,233.50
  6. Step 6: Final answer
    x = 600.95

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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.