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Finding the Fourth Proportional to 893.38, 1,232.76 and 539.38

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Solution

The fourth proportional to 893.38, 1,232.76 and 539.38 is: 744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.38 : 1,232.76 = 539.38 : x
  2. Step 2: Convert to fraction form
    893.38/1,232.76 = 539.38/x
  3. Step 3: Cross multiply
    893.38x = 1,232.76 × 539.38
  4. Step 4: Simplify right side
    893.38x = 664,926.09
  5. Step 5: Solve for x
    x = 664,926.09/893.38
  6. Step 6: Final answer
    x = 744.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.