Finding the Fourth Proportional to 642,446.92, 886,563.66 and 355,966.12
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Solution
The fourth proportional to 642,446.92, 886,563.66 and 355,966.12 is: 491,225.99
Step by Step Solution
- Step 1: Write the proportion equation
642,446.92 : 886,563.66 = 355,966.12 : x - Step 2: Convert to fraction form
642,446.92/886,563.66 = 355,966.12/x - Step 3: Cross multiply
642,446.92x = 886,563.66 × 355,966.12 - Step 4: Simplify right side
642,446.92x = 315,586,626,183.20 - Step 5: Solve for x
x = 315,586,626,183.20/642,446.92 - Step 6: Final answer
x = 491,225.99
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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.