Finding the Fourth Proportional to 1,678,904.99, 2,316,821.28 and 914,942.15
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Solution
The fourth proportional to 1,678,904.99, 2,316,821.28 and 914,942.15 is: 1,262,583.32
Step by Step Solution
- Step 1: Write the proportion equation
1,678,904.99 : 2,316,821.28 = 914,942.15 : x - Step 2: Convert to fraction form
1,678,904.99/2,316,821.28 = 914,942.15/x - Step 3: Cross multiply
1,678,904.99x = 2,316,821.28 × 914,942.15 - Step 4: Simplify right side
1,678,904.99x = 2,119,757,431,504.85 - Step 5: Solve for x
x = 2,119,757,431,504.85/1,678,904.99 - Step 6: Final answer
x = 1,262,583.32
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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.