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Finding the Fourth Proportional to 534.05, 799.70 and 442.47

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Solution

The fourth proportional to 534.05, 799.70 and 442.47 is: 662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.05 : 799.70 = 442.47 : x
  2. Step 2: Convert to fraction form
    534.05/799.70 = 442.47/x
  3. Step 3: Cross multiply
    534.05x = 799.70 × 442.47
  4. Step 4: Simplify right side
    534.05x = 353,841.05
  5. Step 5: Solve for x
    x = 353,841.05/534.05
  6. Step 6: Final answer
    x = 662.57

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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.