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Finding the Fourth Proportional to 494,644.50, 682,609.50 and 279,779.94

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Solution

The fourth proportional to 494,644.50, 682,609.50 and 279,779.94 is: 386,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,644.50 : 682,609.50 = 279,779.94 : x
  2. Step 2: Convert to fraction form
    494,644.50/682,609.50 = 279,779.94/x
  3. Step 3: Cross multiply
    494,644.50x = 682,609.50 × 279,779.94
  4. Step 4: Simplify right side
    494,644.50x = 190,980,444,953.43
  5. Step 5: Solve for x
    x = 190,980,444,953.43/494,644.50
  6. Step 6: Final answer
    x = 386,096.37

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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.