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Finding the Fourth Proportional to 553.79, 836.96 and 544.23

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Solution

The fourth proportional to 553.79, 836.96 and 544.23 is: 822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.79 : 836.96 = 544.23 : x
  2. Step 2: Convert to fraction form
    553.79/836.96 = 544.23/x
  3. Step 3: Cross multiply
    553.79x = 836.96 × 544.23
  4. Step 4: Simplify right side
    553.79x = 455,494.56
  5. Step 5: Solve for x
    x = 455,494.56/553.79
  6. Step 6: Final answer
    x = 822.50

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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.