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Finding the Fourth Proportional to 381,952.60, 573,118.98 and 289,028.44

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Solution

The fourth proportional to 381,952.60, 573,118.98 and 289,028.44 is: 433,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,952.60 : 573,118.98 = 289,028.44 : x
  2. Step 2: Convert to fraction form
    381,952.60/573,118.98 = 289,028.44/x
  3. Step 3: Cross multiply
    381,952.60x = 573,118.98 × 289,028.44
  4. Step 4: Simplify right side
    381,952.60x = 165,647,684,723.79
  5. Step 5: Solve for x
    x = 165,647,684,723.79/381,952.60
  6. Step 6: Final answer
    x = 433,686.50

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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.