Finding the Fourth Proportional to 1,999,960.11, 2,757,339.29 and 1,274,543.15
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Solution
The fourth proportional to 1,999,960.11, 2,757,339.29 and 1,274,543.15 is: 1,757,208.99
Step by Step Solution
- Step 1: Write the proportion equation
1,999,960.11 : 2,757,339.29 = 1,274,543.15 : x - Step 2: Convert to fraction form
1,999,960.11/2,757,339.29 = 1,274,543.15/x - Step 3: Cross multiply
1,999,960.11x = 2,757,339.29 × 1,274,543.15 - Step 4: Simplify right side
1,999,960.11x = 3,514,347,884,135.95 - Step 5: Solve for x
x = 3,514,347,884,135.95/1,999,960.11 - Step 6: Final answer
x = 1,757,208.99
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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.