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Finding the Fourth Proportional to 596, 822.04 and 399.16

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Solution

The fourth proportional to 596, 822.04 and 399.16 is: 550.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    596 : 822.04 = 399.16 : x
  2. Step 2: Convert to fraction form
    596/822.04 = 399.16/x
  3. Step 3: Cross multiply
    596x = 822.04 × 399.16
  4. Step 4: Simplify right side
    596x = 328,125.49
  5. Step 5: Solve for x
    x = 328,125.49/596
  6. Step 6: Final answer
    x = 550.55

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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.