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Finding the Fourth Proportional to 589.50, 884.45 and 426.89

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Solution

The fourth proportional to 589.50, 884.45 and 426.89 is: 640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.50 : 884.45 = 426.89 : x
  2. Step 2: Convert to fraction form
    589.50/884.45 = 426.89/x
  3. Step 3: Cross multiply
    589.50x = 884.45 × 426.89
  4. Step 4: Simplify right side
    589.50x = 377,566.14
  5. Step 5: Solve for x
    x = 377,566.14/589.50
  6. Step 6: Final answer
    x = 640.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.