Finding the Fourth Proportional to 3,825,321.78, 5,278,754.58 and 2,106,121.08
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Solution
The fourth proportional to 3,825,321.78, 5,278,754.58 and 2,106,121.08 is: 2,906,342.77
Step by Step Solution
- Step 1: Write the proportion equation
3,825,321.78 : 5,278,754.58 = 2,106,121.08 : x - Step 2: Convert to fraction form
3,825,321.78/5,278,754.58 = 2,106,121.08/x - Step 3: Cross multiply
3,825,321.78x = 5,278,754.58 × 2,106,121.08 - Step 4: Simplify right side
3,825,321.78x = 11,117,696,297,084.55 - Step 5: Solve for x
x = 11,117,696,297,084.55/3,825,321.78 - Step 6: Final answer
x = 2,906,342.77
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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.