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Finding the Fourth Proportional to 564.39, 845.46 and 549.27

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Solution

The fourth proportional to 564.39, 845.46 and 549.27 is: 822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.39 : 845.46 = 549.27 : x
  2. Step 2: Convert to fraction form
    564.39/845.46 = 549.27/x
  3. Step 3: Cross multiply
    564.39x = 845.46 × 549.27
  4. Step 4: Simplify right side
    564.39x = 464,385.81
  5. Step 5: Solve for x
    x = 464,385.81/564.39
  6. Step 6: Final answer
    x = 822.81

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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.