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Finding the Fourth Proportional to 596.46, 823.02 and 421.50

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Solution

The fourth proportional to 596.46, 823.02 and 421.50 is: 581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.46 : 823.02 = 421.50 : x
  2. Step 2: Convert to fraction form
    596.46/823.02 = 421.50/x
  3. Step 3: Cross multiply
    596.46x = 823.02 × 421.50
  4. Step 4: Simplify right side
    596.46x = 346,902.93
  5. Step 5: Solve for x
    x = 346,902.93/596.46
  6. Step 6: Final answer
    x = 581.60

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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.