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Finding the Fourth Proportional to 800,797.23, 1,105,100.25 and 438,221.07

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Solution

The fourth proportional to 800,797.23, 1,105,100.25 and 438,221.07 is: 604,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,797.23 : 1,105,100.25 = 438,221.07 : x
  2. Step 2: Convert to fraction form
    800,797.23/1,105,100.25 = 438,221.07/x
  3. Step 3: Cross multiply
    800,797.23x = 1,105,100.25 × 438,221.07
  4. Step 4: Simplify right side
    800,797.23x = 484,278,214,012.27
  5. Step 5: Solve for x
    x = 484,278,214,012.27/800,797.23
  6. Step 6: Final answer
    x = 604,745.12

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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.