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Finding the Fourth Proportional to 449,704.85, 620,592.03 and 245,757.65

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Solution

The fourth proportional to 449,704.85, 620,592.03 and 245,757.65 is: 339,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,704.85 : 620,592.03 = 245,757.65 : x
  2. Step 2: Convert to fraction form
    449,704.85/620,592.03 = 245,757.65/x
  3. Step 3: Cross multiply
    449,704.85x = 620,592.03 × 245,757.65
  4. Step 4: Simplify right side
    449,704.85x = 152,515,235,798.57
  5. Step 5: Solve for x
    x = 152,515,235,798.57/449,704.85
  6. Step 6: Final answer
    x = 339,145.19

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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.