Home / 728,662.72-1,093,125.84-329,491.60

Finding the Fourth Proportional to 728,662.72, 1,093,125.84 and 329,491.60

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Solution

The fourth proportional to 728,662.72, 1,093,125.84 and 329,491.60 is: 494,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,662.72 : 1,093,125.84 = 329,491.60 : x
  2. Step 2: Convert to fraction form
    728,662.72/1,093,125.84 = 329,491.60/x
  3. Step 3: Cross multiply
    728,662.72x = 1,093,125.84 × 329,491.60
  4. Step 4: Simplify right side
    728,662.72x = 360,175,782,022.94
  5. Step 5: Solve for x
    x = 360,175,782,022.94/728,662.72
  6. Step 6: Final answer
    x = 494,296.98

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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.