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Finding the Fourth Proportional to 543,519.83, 814,391.98 and 330,352.94

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Solution

The fourth proportional to 543,519.83, 814,391.98 and 330,352.94 is: 494,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,519.83 : 814,391.98 = 330,352.94 : x
  2. Step 2: Convert to fraction form
    543,519.83/814,391.98 = 330,352.94/x
  3. Step 3: Cross multiply
    543,519.83x = 814,391.98 × 330,352.94
  4. Step 4: Simplify right side
    543,519.83x = 269,036,784,905.42
  5. Step 5: Solve for x
    x = 269,036,784,905.42/543,519.83
  6. Step 6: Final answer
    x = 494,989.82

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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.