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Finding the Fourth Proportional to 589.94, 814.08 and 450.15

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Solution

The fourth proportional to 589.94, 814.08 and 450.15 is: 621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.94 : 814.08 = 450.15 : x
  2. Step 2: Convert to fraction form
    589.94/814.08 = 450.15/x
  3. Step 3: Cross multiply
    589.94x = 814.08 × 450.15
  4. Step 4: Simplify right side
    589.94x = 366,458.11
  5. Step 5: Solve for x
    x = 366,458.11/589.94
  6. Step 6: Final answer
    x = 621.18

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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.