Finding the Fourth Proportional to 763,761.07, 1,053,990.68 and 419,619.18
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Solution
The fourth proportional to 763,761.07, 1,053,990.68 and 419,619.18 is: 579,074.69
Step by Step Solution
- Step 1: Write the proportion equation
763,761.07 : 1,053,990.68 = 419,619.18 : x - Step 2: Convert to fraction form
763,761.07/1,053,990.68 = 419,619.18/x - Step 3: Cross multiply
763,761.07x = 1,053,990.68 × 419,619.18 - Step 4: Simplify right side
763,761.07x = 442,274,704,869.24 - Step 5: Solve for x
x = 442,274,704,869.24/763,761.07 - Step 6: Final answer
x = 579,074.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.