Finding the Fourth Proportional to 2,891,880.88, 3,990,795.98 and 1,602,804.49
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Solution
The fourth proportional to 2,891,880.88, 3,990,795.98 and 1,602,804.49 is: 2,211,870.39
Step by Step Solution
- Step 1: Write the proportion equation
2,891,880.88 : 3,990,795.98 = 1,602,804.49 : x - Step 2: Convert to fraction form
2,891,880.88/3,990,795.98 = 1,602,804.49/x - Step 3: Cross multiply
2,891,880.88x = 3,990,795.98 × 1,602,804.49 - Step 4: Simplify right side
2,891,880.88x = 6,396,465,687,449.95 - Step 5: Solve for x
x = 6,396,465,687,449.95/2,891,880.88 - Step 6: Final answer
x = 2,211,870.39
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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.