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Finding the Fourth Proportional to 617,043.70, 925,452.03 and 280,003.30

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Solution

The fourth proportional to 617,043.70, 925,452.03 and 280,003.30 is: 419,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,043.70 : 925,452.03 = 280,003.30 : x
  2. Step 2: Convert to fraction form
    617,043.70/925,452.03 = 280,003.30/x
  3. Step 3: Cross multiply
    617,043.70x = 925,452.03 × 280,003.30
  4. Step 4: Simplify right side
    617,043.70x = 259,129,622,391.70
  5. Step 5: Solve for x
    x = 259,129,622,391.70/617,043.70
  6. Step 6: Final answer
    x = 419,953.44

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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.