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Finding the Fourth Proportional to 534.76, 801.44 and 396.70

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Solution

The fourth proportional to 534.76, 801.44 and 396.70 is: 594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.76 : 801.44 = 396.70 : x
  2. Step 2: Convert to fraction form
    534.76/801.44 = 396.70/x
  3. Step 3: Cross multiply
    534.76x = 801.44 × 396.70
  4. Step 4: Simplify right side
    534.76x = 317,931.25
  5. Step 5: Solve for x
    x = 317,931.25/534.76
  6. Step 6: Final answer
    x = 594.53

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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.