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Finding the Fourth Proportional to 597.57, 823.93 and 422.61

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Solution

The fourth proportional to 597.57, 823.93 and 422.61 is: 582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.57 : 823.93 = 422.61 : x
  2. Step 2: Convert to fraction form
    597.57/823.93 = 422.61/x
  3. Step 3: Cross multiply
    597.57x = 823.93 × 422.61
  4. Step 4: Simplify right side
    597.57x = 348,201.06
  5. Step 5: Solve for x
    x = 348,201.06/597.57
  6. Step 6: Final answer
    x = 582.70

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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.