Finding the Fourth Proportional to 642,532.92, 886,700.73 and 356,057.79
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Solution
The fourth proportional to 642,532.92, 886,700.73 and 356,057.79 is: 491,362.69
Step by Step Solution
- Step 1: Write the proportion equation
642,532.92 : 886,700.73 = 356,057.79 : x - Step 2: Convert to fraction form
642,532.92/886,700.73 = 356,057.79/x - Step 3: Cross multiply
642,532.92x = 886,700.73 × 356,057.79 - Step 4: Simplify right side
642,532.92x = 315,716,702,315.19 - Step 5: Solve for x
x = 315,716,702,315.19/642,532.92 - Step 6: Final answer
x = 491,362.69
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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.