Finding the Fourth Proportional to 1,986,305.82, 2,979,755.18 and 921,455.52
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Solution
The fourth proportional to 1,986,305.82, 2,979,755.18 and 921,455.52 is: 1,382,320.80
Step by Step Solution
- Step 1: Write the proportion equation
1,986,305.82 : 2,979,755.18 = 921,455.52 : x - Step 2: Convert to fraction form
1,986,305.82/2,979,755.18 = 921,455.52/x - Step 3: Cross multiply
1,986,305.82x = 2,979,755.18 × 921,455.52 - Step 4: Simplify right side
1,986,305.82x = 2,745,711,858,859.59 - Step 5: Solve for x
x = 2,745,711,858,859.59/1,986,305.82 - Step 6: Final answer
x = 1,382,320.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.