Finding the Fourth Proportional to 642,369.49, 886,446.38 and 370,448.84
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Solution
The fourth proportional to 642,369.49, 886,446.38 and 370,448.84 is: 511,205.84
Step by Step Solution
- Step 1: Write the proportion equation
642,369.49 : 886,446.38 = 370,448.84 : x - Step 2: Convert to fraction form
642,369.49/886,446.38 = 370,448.84/x - Step 3: Cross multiply
642,369.49x = 886,446.38 × 370,448.84 - Step 4: Simplify right side
642,369.49x = 328,383,036,335.44 - Step 5: Solve for x
x = 328,383,036,335.44/642,369.49 - Step 6: Final answer
x = 511,205.84
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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.