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Finding the Fourth Proportional to 605.59, 835.57 and 481.66

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Solution

The fourth proportional to 605.59, 835.57 and 481.66 is: 664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.59 : 835.57 = 481.66 : x
  2. Step 2: Convert to fraction form
    605.59/835.57 = 481.66/x
  3. Step 3: Cross multiply
    605.59x = 835.57 × 481.66
  4. Step 4: Simplify right side
    605.59x = 402,460.65
  5. Step 5: Solve for x
    x = 402,460.65/605.59
  6. Step 6: Final answer
    x = 664.58

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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.