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Finding the Fourth Proportional to 893.28, 1,232.84 and 500.43

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Solution

The fourth proportional to 893.28, 1,232.84 and 500.43 is: 690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.28 : 1,232.84 = 500.43 : x
  2. Step 2: Convert to fraction form
    893.28/1,232.84 = 500.43/x
  3. Step 3: Cross multiply
    893.28x = 1,232.84 × 500.43
  4. Step 4: Simplify right side
    893.28x = 616,951.37
  5. Step 5: Solve for x
    x = 616,951.37/893.28
  6. Step 6: Final answer
    x = 690.66

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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.