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Finding the Fourth Proportional to 599.89, 827.55 and 387.14

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Solution

The fourth proportional to 599.89, 827.55 and 387.14 is: 534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.89 : 827.55 = 387.14 : x
  2. Step 2: Convert to fraction form
    599.89/827.55 = 387.14/x
  3. Step 3: Cross multiply
    599.89x = 827.55 × 387.14
  4. Step 4: Simplify right side
    599.89x = 320,382.26
  5. Step 5: Solve for x
    x = 320,382.26/599.89
  6. Step 6: Final answer
    x = 534.07

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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.