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Finding the Fourth Proportional to 589.88, 814.02 and 449.84

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Solution

The fourth proportional to 589.88, 814.02 and 449.84 is: 620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.88 : 814.02 = 449.84 : x
  2. Step 2: Convert to fraction form
    589.88/814.02 = 449.84/x
  3. Step 3: Cross multiply
    589.88x = 814.02 × 449.84
  4. Step 4: Simplify right side
    589.88x = 366,178.76
  5. Step 5: Solve for x
    x = 366,178.76/589.88
  6. Step 6: Final answer
    x = 620.77

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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.