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Finding the Fourth Proportional to 606.35, 835.79 and 409.52

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Solution

The fourth proportional to 606.35, 835.79 and 409.52 is: 564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.35 : 835.79 = 409.52 : x
  2. Step 2: Convert to fraction form
    606.35/835.79 = 409.52/x
  3. Step 3: Cross multiply
    606.35x = 835.79 × 409.52
  4. Step 4: Simplify right side
    606.35x = 342,272.72
  5. Step 5: Solve for x
    x = 342,272.72/606.35
  6. Step 6: Final answer
    x = 564.48

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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.