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Finding the Fourth Proportional to 557.04, 771.90 and 544.29

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Solution

The fourth proportional to 557.04, 771.90 and 544.29 is: 754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.04 : 771.90 = 544.29 : x
  2. Step 2: Convert to fraction form
    557.04/771.90 = 544.29/x
  3. Step 3: Cross multiply
    557.04x = 771.90 × 544.29
  4. Step 4: Simplify right side
    557.04x = 420,137.45
  5. Step 5: Solve for x
    x = 420,137.45/557.04
  6. Step 6: Final answer
    x = 754.23

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.