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Finding the Fourth Proportional to 606.30, 837.10 and 409.74

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Solution

The fourth proportional to 606.30, 837.10 and 409.74 is: 565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.30 : 837.10 = 409.74 : x
  2. Step 2: Convert to fraction form
    606.30/837.10 = 409.74/x
  3. Step 3: Cross multiply
    606.30x = 837.10 × 409.74
  4. Step 4: Simplify right side
    606.30x = 342,989.21
  5. Step 5: Solve for x
    x = 342,989.21/606.30
  6. Step 6: Final answer
    x = 565.71

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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.