Finding the Fourth Proportional to 1,686,836.75, 2,327,868.32 and 922,906.71
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Solution
The fourth proportional to 1,686,836.75, 2,327,868.32 and 922,906.71 is: 1,273,629.65
Step by Step Solution
- Step 1: Write the proportion equation
1,686,836.75 : 2,327,868.32 = 922,906.71 : x - Step 2: Convert to fraction form
1,686,836.75/2,327,868.32 = 922,906.71/x - Step 3: Cross multiply
1,686,836.75x = 2,327,868.32 × 922,906.71 - Step 4: Simplify right side
1,686,836.75x = 2,148,405,287,909.89 - Step 5: Solve for x
x = 2,148,405,287,909.89/1,686,836.75 - Step 6: Final answer
x = 1,273,629.65
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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.