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Finding the Fourth Proportional to 613.56, 845.39 and 416.73

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Solution

The fourth proportional to 613.56, 845.39 and 416.73 is: 574.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.56 : 845.39 = 416.73 : x
  2. Step 2: Convert to fraction form
    613.56/845.39 = 416.73/x
  3. Step 3: Cross multiply
    613.56x = 845.39 × 416.73
  4. Step 4: Simplify right side
    613.56x = 352,300.42
  5. Step 5: Solve for x
    x = 352,300.42/613.56
  6. Step 6: Final answer
    x = 574.19

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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.