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Finding the Fourth Proportional to 804,771.84, 1,207,724.94 and 378,327

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Solution

The fourth proportional to 804,771.84, 1,207,724.94 and 378,327 is: 567,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,771.84 : 1,207,724.94 = 378,327 : x
  2. Step 2: Convert to fraction form
    804,771.84/1,207,724.94 = 378,327/x
  3. Step 3: Cross multiply
    804,771.84x = 1,207,724.94 × 378,327
  4. Step 4: Simplify right side
    804,771.84x = 456,914,953,375.38
  5. Step 5: Solve for x
    x = 456,914,953,375.38/804,771.84
  6. Step 6: Final answer
    x = 567,757.13

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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.