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Finding the Fourth Proportional to 547.41, 755.55 and 437.76

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Solution

The fourth proportional to 547.41, 755.55 and 437.76 is: 604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.41 : 755.55 = 437.76 : x
  2. Step 2: Convert to fraction form
    547.41/755.55 = 437.76/x
  3. Step 3: Cross multiply
    547.41x = 755.55 × 437.76
  4. Step 4: Simplify right side
    547.41x = 330,749.57
  5. Step 5: Solve for x
    x = 330,749.57/547.41
  6. Step 6: Final answer
    x = 604.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.