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Finding the Fourth Proportional to 599.76, 827.42 and 378.32

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Solution

The fourth proportional to 599.76, 827.42 and 378.32 is: 521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.76 : 827.42 = 378.32 : x
  2. Step 2: Convert to fraction form
    599.76/827.42 = 378.32/x
  3. Step 3: Cross multiply
    599.76x = 827.42 × 378.32
  4. Step 4: Simplify right side
    599.76x = 313,023.51
  5. Step 5: Solve for x
    x = 313,023.51/599.76
  6. Step 6: Final answer
    x = 521.91

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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.