Home / 3,138,784.70-4,331,375.26-1,743,436.78

Finding the Fourth Proportional to 3,138,784.70, 4,331,375.26 and 1,743,436.78

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Solution

The fourth proportional to 3,138,784.70, 4,331,375.26 and 1,743,436.78 is: 2,405,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,784.70 : 4,331,375.26 = 1,743,436.78 : x
  2. Step 2: Convert to fraction form
    3,138,784.70/4,331,375.26 = 1,743,436.78/x
  3. Step 3: Cross multiply
    3,138,784.70x = 4,331,375.26 × 1,743,436.78
  4. Step 4: Simplify right side
    3,138,784.70x = 7,551,478,936,266.06
  5. Step 5: Solve for x
    x = 7,551,478,936,266.06/3,138,784.70
  6. Step 6: Final answer
    x = 2,405,860.76

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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.