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Finding the Fourth Proportional to 606.75, 905.54 and 548.43

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Solution

The fourth proportional to 606.75, 905.54 and 548.43 is: 818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.75 : 905.54 = 548.43 : x
  2. Step 2: Convert to fraction form
    606.75/905.54 = 548.43/x
  3. Step 3: Cross multiply
    606.75x = 905.54 × 548.43
  4. Step 4: Simplify right side
    606.75x = 496,625.30
  5. Step 5: Solve for x
    x = 496,625.30/606.75
  6. Step 6: Final answer
    x = 818.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.