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Finding the Fourth Proportional to 599.60, 827.72 and 400.76

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Solution

The fourth proportional to 599.60, 827.72 and 400.76 is: 553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.60 : 827.72 = 400.76 : x
  2. Step 2: Convert to fraction form
    599.60/827.72 = 400.76/x
  3. Step 3: Cross multiply
    599.60x = 827.72 × 400.76
  4. Step 4: Simplify right side
    599.60x = 331,717.07
  5. Step 5: Solve for x
    x = 331,717.07/599.60
  6. Step 6: Final answer
    x = 553.23

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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.