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Finding the Fourth Proportional to 605.61, 836.39 and 471.36

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Solution

The fourth proportional to 605.61, 836.39 and 471.36 is: 650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.61 : 836.39 = 471.36 : x
  2. Step 2: Convert to fraction form
    605.61/836.39 = 471.36/x
  3. Step 3: Cross multiply
    605.61x = 836.39 × 471.36
  4. Step 4: Simplify right side
    605.61x = 394,240.79
  5. Step 5: Solve for x
    x = 394,240.79/605.61
  6. Step 6: Final answer
    x = 650.98

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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.