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Finding the Fourth Proportional to 594.40, 890.54 and 398.96

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Solution

The fourth proportional to 594.40, 890.54 and 398.96 is: 597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.40 : 890.54 = 398.96 : x
  2. Step 2: Convert to fraction form
    594.40/890.54 = 398.96/x
  3. Step 3: Cross multiply
    594.40x = 890.54 × 398.96
  4. Step 4: Simplify right side
    594.40x = 355,289.84
  5. Step 5: Solve for x
    x = 355,289.84/594.40
  6. Step 6: Final answer
    x = 597.73

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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.