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Finding the Fourth Proportional to 611.27, 849.24 and 603.98

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Solution

The fourth proportional to 611.27, 849.24 and 603.98 is: 839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.27 : 849.24 = 603.98 : x
  2. Step 2: Convert to fraction form
    611.27/849.24 = 603.98/x
  3. Step 3: Cross multiply
    611.27x = 849.24 × 603.98
  4. Step 4: Simplify right side
    611.27x = 512,923.98
  5. Step 5: Solve for x
    x = 512,923.98/611.27
  6. Step 6: Final answer
    x = 839.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.