Finding the Fourth Proportional to 3,519,806.08, 4,857,405.12 and 1,991,912.80
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Solution
The fourth proportional to 3,519,806.08, 4,857,405.12 and 1,991,912.80 is: 2,748,880.82
Step by Step Solution
- Step 1: Write the proportion equation
3,519,806.08 : 4,857,405.12 = 1,991,912.80 : x - Step 2: Convert to fraction form
3,519,806.08/4,857,405.12 = 1,991,912.80/x - Step 3: Cross multiply
3,519,806.08x = 4,857,405.12 × 1,991,912.80 - Step 4: Simplify right side
3,519,806.08x = 9,675,527,433,313.54 - Step 5: Solve for x
x = 9,675,527,433,313.54/3,519,806.08 - Step 6: Final answer
x = 2,748,880.82
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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.