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Finding the Fourth Proportional to 617.54, 850.55 and 534.65

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Solution

The fourth proportional to 617.54, 850.55 and 534.65 is: 736.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.54 : 850.55 = 534.65 : x
  2. Step 2: Convert to fraction form
    617.54/850.55 = 534.65/x
  3. Step 3: Cross multiply
    617.54x = 850.55 × 534.65
  4. Step 4: Simplify right side
    617.54x = 454,739.63
  5. Step 5: Solve for x
    x = 454,739.63/617.54
  6. Step 6: Final answer
    x = 736.38

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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.