Finding the Fourth Proportional to 1,439,912.61, 2,161,049.49 and 730,143.63
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Solution
The fourth proportional to 1,439,912.61, 2,161,049.49 and 730,143.63 is: 1,095,814.09
Step by Step Solution
- Step 1: Write the proportion equation
1,439,912.61 : 2,161,049.49 = 730,143.63 : x - Step 2: Convert to fraction form
1,439,912.61/2,161,049.49 = 730,143.63/x - Step 3: Cross multiply
1,439,912.61x = 2,161,049.49 × 730,143.63 - Step 4: Simplify right side
1,439,912.61x = 1,577,876,519,238.25 - Step 5: Solve for x
x = 1,577,876,519,238.25/1,439,912.61 - Step 6: Final answer
x = 1,095,814.09
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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.