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Finding the Fourth Proportional to 481,343.28, 664,263.36 and 287,950.44

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Solution

The fourth proportional to 481,343.28, 664,263.36 and 287,950.44 is: 397,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,343.28 : 664,263.36 = 287,950.44 : x
  2. Step 2: Convert to fraction form
    481,343.28/664,263.36 = 287,950.44/x
  3. Step 3: Cross multiply
    481,343.28x = 664,263.36 × 287,950.44
  4. Step 4: Simplify right side
    481,343.28x = 191,274,926,787.88
  5. Step 5: Solve for x
    x = 191,274,926,787.88/481,343.28
  6. Step 6: Final answer
    x = 397,377.37

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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.