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Finding the Fourth Proportional to 850.44, 1,273.83 and 416.69

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Solution

The fourth proportional to 850.44, 1,273.83 and 416.69 is: 624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.44 : 1,273.83 = 416.69 : x
  2. Step 2: Convert to fraction form
    850.44/1,273.83 = 416.69/x
  3. Step 3: Cross multiply
    850.44x = 1,273.83 × 416.69
  4. Step 4: Simplify right side
    850.44x = 530,792.22
  5. Step 5: Solve for x
    x = 530,792.22/850.44
  6. Step 6: Final answer
    x = 624.14

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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.