Finding the Fourth Proportional to 1,639,578.18, 2,262,621.90 and 914,472.87
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Solution
The fourth proportional to 1,639,578.18, 2,262,621.90 and 914,472.87 is: 1,261,974.80
Step by Step Solution
- Step 1: Write the proportion equation
1,639,578.18 : 2,262,621.90 = 914,472.87 : x - Step 2: Convert to fraction form
1,639,578.18/2,262,621.90 = 914,472.87/x - Step 3: Cross multiply
1,639,578.18x = 2,262,621.90 × 914,472.87 - Step 4: Simplify right side
1,639,578.18x = 2,069,106,342,617.85 - Step 5: Solve for x
x = 2,069,106,342,617.85/1,639,578.18 - Step 6: Final answer
x = 1,261,974.80
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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.