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Finding the Fourth Proportional to 607.75, 911.85 and 364.44

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Solution

The fourth proportional to 607.75, 911.85 and 364.44 is: 546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.75 : 911.85 = 364.44 : x
  2. Step 2: Convert to fraction form
    607.75/911.85 = 364.44/x
  3. Step 3: Cross multiply
    607.75x = 911.85 × 364.44
  4. Step 4: Simplify right side
    607.75x = 332,314.61
  5. Step 5: Solve for x
    x = 332,314.61/607.75
  6. Step 6: Final answer
    x = 546.79

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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.