Finding the Fourth Proportional to 991,191.36, 1,486,843.52 and 281,163.84
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Solution
The fourth proportional to 991,191.36, 1,486,843.52 and 281,163.84 is: 421,761.78
Step by Step Solution
- Step 1: Write the proportion equation
991,191.36 : 1,486,843.52 = 281,163.84 : x - Step 2: Convert to fraction form
991,191.36/1,486,843.52 = 281,163.84/x - Step 3: Cross multiply
991,191.36x = 1,486,843.52 × 281,163.84 - Step 4: Simplify right side
991,191.36x = 418,046,633,562.32 - Step 5: Solve for x
x = 418,046,633,562.32/991,191.36 - Step 6: Final answer
x = 421,761.78
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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.