Finding the Fourth Proportional to 1,639,578.68, 2,262,622.60 and 914,473.38
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Solution
The fourth proportional to 1,639,578.68, 2,262,622.60 and 914,473.38 is: 1,261,975.51
Step by Step Solution
- Step 1: Write the proportion equation
1,639,578.68 : 2,262,622.60 = 914,473.38 : x - Step 2: Convert to fraction form
1,639,578.68/2,262,622.60 = 914,473.38/x - Step 3: Cross multiply
1,639,578.68x = 2,262,622.60 × 914,473.38 - Step 4: Simplify right side
1,639,578.68x = 2,069,108,136,686.39 - Step 5: Solve for x
x = 2,069,108,136,686.39/1,639,578.68 - Step 6: Final answer
x = 1,261,975.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.