Finding the Fourth Proportional to 3,378,708.94, 5,068,021.14 and 819,945.09
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Solution
The fourth proportional to 3,378,708.94, 5,068,021.14 and 819,945.09 is: 1,229,907.38
Step by Step Solution
- Step 1: Write the proportion equation
3,378,708.94 : 5,068,021.14 = 819,945.09 : x - Step 2: Convert to fraction form
3,378,708.94/5,068,021.14 = 819,945.09/x - Step 3: Cross multiply
3,378,708.94x = 5,068,021.14 × 819,945.09 - Step 4: Simplify right side
3,378,708.94x = 4,155,499,049,759.20 - Step 5: Solve for x
x = 4,155,499,049,759.20/3,378,708.94 - Step 6: Final answer
x = 1,229,907.38
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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.