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Finding the Fourth Proportional to 599.44, 827.58 and 389.68

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Solution

The fourth proportional to 599.44, 827.58 and 389.68 is: 537.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.44 : 827.58 = 389.68 : x
  2. Step 2: Convert to fraction form
    599.44/827.58 = 389.68/x
  3. Step 3: Cross multiply
    599.44x = 827.58 × 389.68
  4. Step 4: Simplify right side
    599.44x = 322,491.37
  5. Step 5: Solve for x
    x = 322,491.37/599.44
  6. Step 6: Final answer
    x = 537.99

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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.