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Finding the Fourth Proportional to 599.64, 827.28 and 402.84

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Solution

The fourth proportional to 599.64, 827.28 and 402.84 is: 555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.64 : 827.28 = 402.84 : x
  2. Step 2: Convert to fraction form
    599.64/827.28 = 402.84/x
  3. Step 3: Cross multiply
    599.64x = 827.28 × 402.84
  4. Step 4: Simplify right side
    599.64x = 333,261.48
  5. Step 5: Solve for x
    x = 333,261.48/599.64
  6. Step 6: Final answer
    x = 555.77

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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.