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Finding the Fourth Proportional to 544.11, 816.77 and 454.20

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Solution

The fourth proportional to 544.11, 816.77 and 454.20 is: 681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.11 : 816.77 = 454.20 : x
  2. Step 2: Convert to fraction form
    544.11/816.77 = 454.20/x
  3. Step 3: Cross multiply
    544.11x = 816.77 × 454.20
  4. Step 4: Simplify right side
    544.11x = 370,976.93
  5. Step 5: Solve for x
    x = 370,976.93/544.11
  6. Step 6: Final answer
    x = 681.81

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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.