Finding the Fourth Proportional to 1,645,891.92, 2,271,334.17 and 920,751.75
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Solution
The fourth proportional to 1,645,891.92, 2,271,334.17 and 920,751.75 is: 1,270,639.27
Step by Step Solution
- Step 1: Write the proportion equation
1,645,891.92 : 2,271,334.17 = 920,751.75 : x - Step 2: Convert to fraction form
1,645,891.92/2,271,334.17 = 920,751.75/x - Step 3: Cross multiply
1,645,891.92x = 2,271,334.17 × 920,751.75 - Step 4: Simplify right side
1,645,891.92x = 2,091,334,898,203.75 - Step 5: Solve for x
x = 2,091,334,898,203.75/1,645,891.92 - Step 6: Final answer
x = 1,270,639.27
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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.