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Finding the Fourth Proportional to 611,755.13, 844,245.77 and 339,843.66

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Solution

The fourth proportional to 611,755.13, 844,245.77 and 339,843.66 is: 468,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,755.13 : 844,245.77 = 339,843.66 : x
  2. Step 2: Convert to fraction form
    611,755.13/844,245.77 = 339,843.66/x
  3. Step 3: Cross multiply
    611,755.13x = 844,245.77 × 339,843.66
  4. Step 4: Simplify right side
    611,755.13x = 286,911,570,717.10
  5. Step 5: Solve for x
    x = 286,911,570,717.10/611,755.13
  6. Step 6: Final answer
    x = 468,997.41

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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.