Finding the Fourth Proportional to 1,186,755.80, 1,780,362.84 and 387,821.84
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Solution
The fourth proportional to 1,186,755.80, 1,780,362.84 and 387,821.84 is: 581,807.64
Step by Step Solution
- Step 1: Write the proportion equation
1,186,755.80 : 1,780,362.84 = 387,821.84 : x - Step 2: Convert to fraction form
1,186,755.80/1,780,362.84 = 387,821.84/x - Step 3: Cross multiply
1,186,755.80x = 1,780,362.84 × 387,821.84 - Step 4: Simplify right side
1,186,755.80x = 690,463,592,476.43 - Step 5: Solve for x
x = 690,463,592,476.43/1,186,755.80 - Step 6: Final answer
x = 581,807.64
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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.