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Finding the Fourth Proportional to 589.45, 813.42 and 327.46

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Solution

The fourth proportional to 589.45, 813.42 and 327.46 is: 451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.45 : 813.42 = 327.46 : x
  2. Step 2: Convert to fraction form
    589.45/813.42 = 327.46/x
  3. Step 3: Cross multiply
    589.45x = 813.42 × 327.46
  4. Step 4: Simplify right side
    589.45x = 266,362.51
  5. Step 5: Solve for x
    x = 266,362.51/589.45
  6. Step 6: Final answer
    x = 451.88

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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.