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Finding the Fourth Proportional to 796,331, 1,098,936.84 and 438,635

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Solution

The fourth proportional to 796,331, 1,098,936.84 and 438,635 is: 605,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    796,331 : 1,098,936.84 = 438,635 : x
  2. Step 2: Convert to fraction form
    796,331/1,098,936.84 = 438,635/x
  3. Step 3: Cross multiply
    796,331x = 1,098,936.84 × 438,635
  4. Step 4: Simplify right side
    796,331x = 482,032,160,813.40
  5. Step 5: Solve for x
    x = 482,032,160,813.40/796,331
  6. Step 6: Final answer
    x = 605,316.33

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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.