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Finding the Fourth Proportional to 705,997.93, 1,058,375.79 and 279,832.88

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Solution

The fourth proportional to 705,997.93, 1,058,375.79 and 279,832.88 is: 419,503.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,997.93 : 1,058,375.79 = 279,832.88 : x
  2. Step 2: Convert to fraction form
    705,997.93/1,058,375.79 = 279,832.88/x
  3. Step 3: Cross multiply
    705,997.93x = 1,058,375.79 × 279,832.88
  4. Step 4: Simplify right side
    705,997.93x = 296,168,344,738.39
  5. Step 5: Solve for x
    x = 296,168,344,738.39/705,997.93
  6. Step 6: Final answer
    x = 419,503.14

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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.