Finding the Fourth Proportional to 3,178,338.94, 4,770,504.60 and 1,158,535.09
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Solution
The fourth proportional to 3,178,338.94, 4,770,504.60 and 1,158,535.09 is: 1,738,894.78
Step by Step Solution
- Step 1: Write the proportion equation
3,178,338.94 : 4,770,504.60 = 1,158,535.09 : x - Step 2: Convert to fraction form
3,178,338.94/4,770,504.60 = 1,158,535.09/x - Step 3: Cross multiply
3,178,338.94x = 4,770,504.60 × 1,158,535.09 - Step 4: Simplify right side
3,178,338.94x = 5,526,796,976,106.41 - Step 5: Solve for x
x = 5,526,796,976,106.41/3,178,338.94 - Step 6: Final answer
x = 1,738,894.78
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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.