Finding the Fourth Proportional to 548,086.98, 756,346.70 and 306,397.97
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Solution
The fourth proportional to 548,086.98, 756,346.70 and 306,397.97 is: 422,821.74
Step by Step Solution
- Step 1: Write the proportion equation
548,086.98 : 756,346.70 = 306,397.97 : x - Step 2: Convert to fraction form
548,086.98/756,346.70 = 306,397.97/x - Step 3: Cross multiply
548,086.98x = 756,346.70 × 306,397.97 - Step 4: Simplify right side
548,086.98x = 231,743,091,593.27 - Step 5: Solve for x
x = 231,743,091,593.27/548,086.98 - Step 6: Final answer
x = 422,821.74
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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.