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Finding the Fourth Proportional to 551.44, 822.28 and 546.56

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Solution

The fourth proportional to 551.44, 822.28 and 546.56 is: 815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.44 : 822.28 = 546.56 : x
  2. Step 2: Convert to fraction form
    551.44/822.28 = 546.56/x
  3. Step 3: Cross multiply
    551.44x = 822.28 × 546.56
  4. Step 4: Simplify right side
    551.44x = 449,425.36
  5. Step 5: Solve for x
    x = 449,425.36/551.44
  6. Step 6: Final answer
    x = 815.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.