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Finding the Fourth Proportional to 544.64, 816.26 and 398.39

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Solution

The fourth proportional to 544.64, 816.26 and 398.39 is: 597.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.64 : 816.26 = 398.39 : x
  2. Step 2: Convert to fraction form
    544.64/816.26 = 398.39/x
  3. Step 3: Cross multiply
    544.64x = 816.26 × 398.39
  4. Step 4: Simplify right side
    544.64x = 325,183.75
  5. Step 5: Solve for x
    x = 325,183.75/544.64
  6. Step 6: Final answer
    x = 597.07

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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.