Finding the Fourth Proportional to 2,891,872.84, 3,990,784.44 and 1,602,906.88
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Solution
The fourth proportional to 2,891,872.84, 3,990,784.44 and 1,602,906.88 is: 2,212,011.45
Step by Step Solution
- Step 1: Write the proportion equation
2,891,872.84 : 3,990,784.44 = 1,602,906.88 : x - Step 2: Convert to fraction form
2,891,872.84/3,990,784.44 = 1,602,906.88/x - Step 3: Cross multiply
2,891,872.84x = 3,990,784.44 × 1,602,906.88 - Step 4: Simplify right side
2,891,872.84x = 6,396,855,835,472.95 - Step 5: Solve for x
x = 6,396,855,835,472.95/2,891,872.84 - Step 6: Final answer
x = 2,212,011.45
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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.