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Finding the Fourth Proportional to 534.66, 799.48 and 488.76

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Solution

The fourth proportional to 534.66, 799.48 and 488.76 is: 730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.66 : 799.48 = 488.76 : x
  2. Step 2: Convert to fraction form
    534.66/799.48 = 488.76/x
  3. Step 3: Cross multiply
    534.66x = 799.48 × 488.76
  4. Step 4: Simplify right side
    534.66x = 390,753.84
  5. Step 5: Solve for x
    x = 390,753.84/534.66
  6. Step 6: Final answer
    x = 730.85

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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.