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Finding the Fourth Proportional to 608.26, 905.87 and 571

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Solution

The fourth proportional to 608.26, 905.87 and 571 is: 850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.26 : 905.87 = 571 : x
  2. Step 2: Convert to fraction form
    608.26/905.87 = 571/x
  3. Step 3: Cross multiply
    608.26x = 905.87 × 571
  4. Step 4: Simplify right side
    608.26x = 517,251.77
  5. Step 5: Solve for x
    x = 517,251.77/608.26
  6. Step 6: Final answer
    x = 850.38

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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.