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Finding the Fourth Proportional to 596.42, 823.35 and 386.90

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Solution

The fourth proportional to 596.42, 823.35 and 386.90 is: 534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.42 : 823.35 = 386.90 : x
  2. Step 2: Convert to fraction form
    596.42/823.35 = 386.90/x
  3. Step 3: Cross multiply
    596.42x = 823.35 × 386.90
  4. Step 4: Simplify right side
    596.42x = 318,550.00
  5. Step 5: Solve for x
    x = 318,550.00/596.42
  6. Step 6: Final answer
    x = 534.11

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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.