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Finding the Fourth Proportional to 599.94, 827.41 and 389.91

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Solution

The fourth proportional to 599.94, 827.41 and 389.91 is: 537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.94 : 827.41 = 389.91 : x
  2. Step 2: Convert to fraction form
    599.94/827.41 = 389.91/x
  3. Step 3: Cross multiply
    599.94x = 827.41 × 389.91
  4. Step 4: Simplify right side
    599.94x = 322,614.46
  5. Step 5: Solve for x
    x = 322,614.46/599.94
  6. Step 6: Final answer
    x = 537.74

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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.