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Finding the Fourth Proportional to 605.08, 906.80 and 533.80

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Solution

The fourth proportional to 605.08, 906.80 and 533.80 is: 799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.08 : 906.80 = 533.80 : x
  2. Step 2: Convert to fraction form
    605.08/906.80 = 533.80/x
  3. Step 3: Cross multiply
    605.08x = 906.80 × 533.80
  4. Step 4: Simplify right side
    605.08x = 484,049.84
  5. Step 5: Solve for x
    x = 484,049.84/605.08
  6. Step 6: Final answer
    x = 799.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.