Finding the Fourth Proportional to 2,639,848.68, 3,643,042.89 and 1,722,664.62
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Solution
The fourth proportional to 2,639,848.68, 3,643,042.89 and 1,722,664.62 is: 2,377,310.92
Step by Step Solution
- Step 1: Write the proportion equation
2,639,848.68 : 3,643,042.89 = 1,722,664.62 : x - Step 2: Convert to fraction form
2,639,848.68/3,643,042.89 = 1,722,664.62/x - Step 3: Cross multiply
2,639,848.68x = 3,643,042.89 × 1,722,664.62 - Step 4: Simplify right side
2,639,848.68x = 6,275,741,095,745.55 - Step 5: Solve for x
x = 6,275,741,095,745.55/2,639,848.68 - Step 6: Final answer
x = 2,377,310.92
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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.