Finding the Fourth Proportional to 1,990,344.42, 2,745,810.36 and 1,264,803.66
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Solution
The fourth proportional to 1,990,344.42, 2,745,810.36 and 1,264,803.66 is: 1,744,879.41
Step by Step Solution
- Step 1: Write the proportion equation
1,990,344.42 : 2,745,810.36 = 1,264,803.66 : x - Step 2: Convert to fraction form
1,990,344.42/2,745,810.36 = 1,264,803.66/x - Step 3: Cross multiply
1,990,344.42x = 2,745,810.36 × 1,264,803.66 - Step 4: Simplify right side
1,990,344.42x = 3,472,910,992,993.92 - Step 5: Solve for x
x = 3,472,910,992,993.92/1,990,344.42 - Step 6: Final answer
x = 1,744,879.41
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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.