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Finding the Fourth Proportional to 549.70, 828.67 and 544.84

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Solution

The fourth proportional to 549.70, 828.67 and 544.84 is: 821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.70 : 828.67 = 544.84 : x
  2. Step 2: Convert to fraction form
    549.70/828.67 = 544.84/x
  3. Step 3: Cross multiply
    549.70x = 828.67 × 544.84
  4. Step 4: Simplify right side
    549.70x = 451,492.56
  5. Step 5: Solve for x
    x = 451,492.56/549.70
  6. Step 6: Final answer
    x = 821.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.