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Finding the Fourth Proportional to 606.68, 837.53 and 408.55

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Solution

The fourth proportional to 606.68, 837.53 and 408.55 is: 564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.68 : 837.53 = 408.55 : x
  2. Step 2: Convert to fraction form
    606.68/837.53 = 408.55/x
  3. Step 3: Cross multiply
    606.68x = 837.53 × 408.55
  4. Step 4: Simplify right side
    606.68x = 342,171.81
  5. Step 5: Solve for x
    x = 342,171.81/606.68
  6. Step 6: Final answer
    x = 564.01

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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.