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Finding the Fourth Proportional to 592.28, 888.72 and 399.50

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Solution

The fourth proportional to 592.28, 888.72 and 399.50 is: 599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.28 : 888.72 = 399.50 : x
  2. Step 2: Convert to fraction form
    592.28/888.72 = 399.50/x
  3. Step 3: Cross multiply
    592.28x = 888.72 × 399.50
  4. Step 4: Simplify right side
    592.28x = 355,043.64
  5. Step 5: Solve for x
    x = 355,043.64/592.28
  6. Step 6: Final answer
    x = 599.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.