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Finding the Fourth Proportional to 1,233.40, 1,850.62 and 540.22

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Solution

The fourth proportional to 1,233.40, 1,850.62 and 540.22 is: 810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.40 : 1,850.62 = 540.22 : x
  2. Step 2: Convert to fraction form
    1,233.40/1,850.62 = 540.22/x
  3. Step 3: Cross multiply
    1,233.40x = 1,850.62 × 540.22
  4. Step 4: Simplify right side
    1,233.40x = 999,741.94
  5. Step 5: Solve for x
    x = 999,741.94/1,233.40
  6. Step 6: Final answer
    x = 810.56

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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.