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Finding the Fourth Proportional to 683.34, 1,025.00 and 547.24

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Solution

The fourth proportional to 683.34, 1,025.00 and 547.24 is: 820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.34 : 1,025.00 = 547.24 : x
  2. Step 2: Convert to fraction form
    683.34/1,025.00 = 547.24/x
  3. Step 3: Cross multiply
    683.34x = 1,025.00 × 547.24
  4. Step 4: Simplify right side
    683.34x = 560,922.75
  5. Step 5: Solve for x
    x = 560,922.75/683.34
  6. Step 6: Final answer
    x = 820.86

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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.