Finding the Fourth Proportional to 2,840,861.12, 4,261,889.84 and 921,622.24
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Solution
The fourth proportional to 2,840,861.12, 4,261,889.84 and 921,622.24 is: 1,382,627.41
Step by Step Solution
- Step 1: Write the proportion equation
2,840,861.12 : 4,261,889.84 = 921,622.24 : x - Step 2: Convert to fraction form
2,840,861.12/4,261,889.84 = 921,622.24/x - Step 3: Cross multiply
2,840,861.12x = 4,261,889.84 × 921,622.24 - Step 4: Simplify right side
2,840,861.12x = 3,927,852,460,974.04 - Step 5: Solve for x
x = 3,927,852,460,974.04/2,840,861.12 - Step 6: Final answer
x = 1,382,627.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.