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Finding the Fourth Proportional to 596.40, 823 and 347.82

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Solution

The fourth proportional to 596.40, 823 and 347.82 is: 479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.40 : 823 = 347.82 : x
  2. Step 2: Convert to fraction form
    596.40/823 = 347.82/x
  3. Step 3: Cross multiply
    596.40x = 823 × 347.82
  4. Step 4: Simplify right side
    596.40x = 286,255.86
  5. Step 5: Solve for x
    x = 286,255.86/596.40
  6. Step 6: Final answer
    x = 479.97

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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.