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Finding the Fourth Proportional to 606.29, 835.80 and 419.50

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Solution

The fourth proportional to 606.29, 835.80 and 419.50 is: 578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.29 : 835.80 = 419.50 : x
  2. Step 2: Convert to fraction form
    606.29/835.80 = 419.50/x
  3. Step 3: Cross multiply
    606.29x = 835.80 × 419.50
  4. Step 4: Simplify right side
    606.29x = 350,613.92
  5. Step 5: Solve for x
    x = 350,613.92/606.29
  6. Step 6: Final answer
    x = 578.29

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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.