Finding the Fourth Proportional to 990,639.28, 1,367,083.02 and 560,920.09
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Solution
The fourth proportional to 990,639.28, 1,367,083.02 and 560,920.09 is: 774,070.18
Step by Step Solution
- Step 1: Write the proportion equation
990,639.28 : 1,367,083.02 = 560,920.09 : x - Step 2: Convert to fraction form
990,639.28/1,367,083.02 = 560,920.09/x - Step 3: Cross multiply
990,639.28x = 1,367,083.02 × 560,920.09 - Step 4: Simplify right side
990,639.28x = 766,824,330,615.87 - Step 5: Solve for x
x = 766,824,330,615.87/990,639.28 - Step 6: Final answer
x = 774,070.18
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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.