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Finding the Fourth Proportional to 597.60, 896.78 and 289.79

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Solution

The fourth proportional to 597.60, 896.78 and 289.79 is: 434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.60 : 896.78 = 289.79 : x
  2. Step 2: Convert to fraction form
    597.60/896.78 = 289.79/x
  3. Step 3: Cross multiply
    597.60x = 896.78 × 289.79
  4. Step 4: Simplify right side
    597.60x = 259,874.14
  5. Step 5: Solve for x
    x = 259,874.14/597.60
  6. Step 6: Final answer
    x = 434.86

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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.