Finding the Fourth Proportional to 1,690,161.09, 2,332,440.68 and 926,198.25
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Solution
The fourth proportional to 1,690,161.09, 2,332,440.68 and 926,198.25 is: 1,278,163.65
Step by Step Solution
- Step 1: Write the proportion equation
1,690,161.09 : 2,332,440.68 = 926,198.25 : x - Step 2: Convert to fraction form
1,690,161.09/2,332,440.68 = 926,198.25/x - Step 3: Cross multiply
1,690,161.09x = 2,332,440.68 × 926,198.25 - Step 4: Simplify right side
1,690,161.09x = 2,160,302,471,413.82 - Step 5: Solve for x
x = 2,160,302,471,413.82/1,690,161.09 - Step 6: Final answer
x = 1,278,163.65
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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.