Finding the Fourth Proportional to 1,431,467.66, 1,975,427.67 and 786,891.92
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Solution
The fourth proportional to 1,431,467.66, 1,975,427.67 and 786,891.92 is: 1,085,912.11
Step by Step Solution
- Step 1: Write the proportion equation
1,431,467.66 : 1,975,427.67 = 786,891.92 : x - Step 2: Convert to fraction form
1,431,467.66/1,975,427.67 = 786,891.92/x - Step 3: Cross multiply
1,431,467.66x = 1,975,427.67 × 786,891.92 - Step 4: Simplify right side
1,431,467.66x = 1,554,448,072,067.43 - Step 5: Solve for x
x = 1,554,448,072,067.43/1,431,467.66 - Step 6: Final answer
x = 1,085,912.11
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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.