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Finding the Fourth Proportional to 597.79, 823.62 and 400.96

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Solution

The fourth proportional to 597.79, 823.62 and 400.96 is: 552.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.79 : 823.62 = 400.96 : x
  2. Step 2: Convert to fraction form
    597.79/823.62 = 400.96/x
  3. Step 3: Cross multiply
    597.79x = 823.62 × 400.96
  4. Step 4: Simplify right side
    597.79x = 330,238.68
  5. Step 5: Solve for x
    x = 330,238.68/597.79
  6. Step 6: Final answer
    x = 552.43

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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.