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Finding the Fourth Proportional to 606.69, 837 and 409.86

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Solution

The fourth proportional to 606.69, 837 and 409.86 is: 565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.69 : 837 = 409.86 : x
  2. Step 2: Convert to fraction form
    606.69/837 = 409.86/x
  3. Step 3: Cross multiply
    606.69x = 837 × 409.86
  4. Step 4: Simplify right side
    606.69x = 343,052.82
  5. Step 5: Solve for x
    x = 343,052.82/606.69
  6. Step 6: Final answer
    x = 565.45

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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.