Finding the Fourth Proportional to 465,939.91, 642,842.49 and 379,750.78
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Solution
The fourth proportional to 465,939.91, 642,842.49 and 379,750.78 is: 523,930.09
Step by Step Solution
- Step 1: Write the proportion equation
465,939.91 : 642,842.49 = 379,750.78 : x - Step 2: Convert to fraction form
465,939.91/642,842.49 = 379,750.78/x - Step 3: Cross multiply
465,939.91x = 642,842.49 × 379,750.78 - Step 4: Simplify right side
465,939.91x = 244,119,936,994.64 - Step 5: Solve for x
x = 244,119,936,994.64/465,939.91 - Step 6: Final answer
x = 523,930.09
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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.