Finding the Fourth Proportional to 3,976,436.08, 5,487,637.12 and 2,257,716.52
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Solution
The fourth proportional to 3,976,436.08, 5,487,637.12 and 2,257,716.52 is: 3,115,736.99
Step by Step Solution
- Step 1: Write the proportion equation
3,976,436.08 : 5,487,637.12 = 2,257,716.52 : x - Step 2: Convert to fraction form
3,976,436.08/5,487,637.12 = 2,257,716.52/x - Step 3: Cross multiply
3,976,436.08x = 5,487,637.12 × 2,257,716.52 - Step 4: Simplify right side
3,976,436.08x = 12,389,528,981,589.22 - Step 5: Solve for x
x = 12,389,528,981,589.22/3,976,436.08 - Step 6: Final answer
x = 3,115,736.99
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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.