Finding the Fourth Proportional to 2,639,737.97, 3,642,838.40 and 1,432,513.97
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Solution
The fourth proportional to 2,639,737.97, 3,642,838.40 and 1,432,513.97 is: 1,976,869.28
Step by Step Solution
- Step 1: Write the proportion equation
2,639,737.97 : 3,642,838.40 = 1,432,513.97 : x - Step 2: Convert to fraction form
2,639,737.97/3,642,838.40 = 1,432,513.97/x - Step 3: Cross multiply
2,639,737.97x = 3,642,838.40 × 1,432,513.97 - Step 4: Simplify right side
2,639,737.97x = 5,218,416,889,422.29 - Step 5: Solve for x
x = 5,218,416,889,422.29/2,639,737.97 - Step 6: Final answer
x = 1,976,869.28
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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.