Finding the Fourth Proportional to 2,891,387.12, 3,990,137.99 and 1,602,249.03
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Solution
The fourth proportional to 2,891,387.12, 3,990,137.99 and 1,602,249.03 is: 2,211,116.83
Step by Step Solution
- Step 1: Write the proportion equation
2,891,387.12 : 3,990,137.99 = 1,602,249.03 : x - Step 2: Convert to fraction form
2,891,387.12/3,990,137.99 = 1,602,249.03/x - Step 3: Cross multiply
2,891,387.12x = 3,990,137.99 × 1,602,249.03 - Step 4: Simplify right side
2,891,387.12x = 6,393,194,716,032.40 - Step 5: Solve for x
x = 6,393,194,716,032.40/2,891,387.12 - Step 6: Final answer
x = 2,211,116.83
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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.