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Finding the Fourth Proportional to 892.50, 1,336.90 and 544.79

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Solution

The fourth proportional to 892.50, 1,336.90 and 544.79 is: 816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.50 : 1,336.90 = 544.79 : x
  2. Step 2: Convert to fraction form
    892.50/1,336.90 = 544.79/x
  3. Step 3: Cross multiply
    892.50x = 1,336.90 × 544.79
  4. Step 4: Simplify right side
    892.50x = 728,329.75
  5. Step 5: Solve for x
    x = 728,329.75/892.50
  6. Step 6: Final answer
    x = 816.06

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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.