Finding the Fourth Proportional to 2,187,583.20, 3,019,036.71 and 1,207,716.99
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Solution
The fourth proportional to 2,187,583.20, 3,019,036.71 and 1,207,716.99 is: 1,666,744.34
Step by Step Solution
- Step 1: Write the proportion equation
2,187,583.20 : 3,019,036.71 = 1,207,716.99 : x - Step 2: Convert to fraction form
2,187,583.20/3,019,036.71 = 1,207,716.99/x - Step 3: Cross multiply
2,187,583.20x = 3,019,036.71 × 1,207,716.99 - Step 4: Simplify right side
2,187,583.20x = 3,646,141,914,514.85 - Step 5: Solve for x
x = 3,646,141,914,514.85/2,187,583.20 - Step 6: Final answer
x = 1,666,744.34
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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.