Finding the Fourth Proportional to 1,287,436.62, 1,776,107.48 and 777,843.75
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Solution
The fourth proportional to 1,287,436.62, 1,776,107.48 and 777,843.75 is: 1,073,089.02
Step by Step Solution
- Step 1: Write the proportion equation
1,287,436.62 : 1,776,107.48 = 777,843.75 : x - Step 2: Convert to fraction form
1,287,436.62/1,776,107.48 = 777,843.75/x - Step 3: Cross multiply
1,287,436.62x = 1,776,107.48 × 777,843.75 - Step 4: Simplify right side
1,287,436.62x = 1,381,534,098,757.03 - Step 5: Solve for x
x = 1,381,534,098,757.03/1,287,436.62 - Step 6: Final answer
x = 1,073,089.02
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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.