Finding the Fourth Proportional to 1,511,335.75, 2,267,302.62 and 431,858.07
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Solution
The fourth proportional to 1,511,335.75, 2,267,302.62 and 431,858.07 is: 647,872.53
Step by Step Solution
- Step 1: Write the proportion equation
1,511,335.75 : 2,267,302.62 = 431,858.07 : x - Step 2: Convert to fraction form
1,511,335.75/2,267,302.62 = 431,858.07/x - Step 3: Cross multiply
1,511,335.75x = 2,267,302.62 × 431,858.07 - Step 4: Simplify right side
1,511,335.75x = 979,152,922,242.63 - Step 5: Solve for x
x = 979,152,922,242.63/1,511,335.75 - Step 6: Final answer
x = 647,872.53
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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.