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Finding the Fourth Proportional to 548.41, 822.46 and 461.76

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Solution

The fourth proportional to 548.41, 822.46 and 461.76 is: 692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.41 : 822.46 = 461.76 : x
  2. Step 2: Convert to fraction form
    548.41/822.46 = 461.76/x
  3. Step 3: Cross multiply
    548.41x = 822.46 × 461.76
  4. Step 4: Simplify right side
    548.41x = 379,779.13
  5. Step 5: Solve for x
    x = 379,779.13/548.41
  6. Step 6: Final answer
    x = 692.51

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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.