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Finding the Fourth Proportional to 800,797.48, 1,105,100.60 and 438,221.32

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Solution

The fourth proportional to 800,797.48, 1,105,100.60 and 438,221.32 is: 604,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,797.48 : 1,105,100.60 = 438,221.32 : x
  2. Step 2: Convert to fraction form
    800,797.48/1,105,100.60 = 438,221.32/x
  3. Step 3: Cross multiply
    800,797.48x = 1,105,100.60 × 438,221.32
  4. Step 4: Simplify right side
    800,797.48x = 484,278,638,710.93
  5. Step 5: Solve for x
    x = 484,278,638,710.93/800,797.48
  6. Step 6: Final answer
    x = 604,745.46

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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.