Finding the Fourth Proportional to 557,770.19, 769,728.84 and 303,121.40
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Solution
The fourth proportional to 557,770.19, 769,728.84 and 303,121.40 is: 418,310.78
Step by Step Solution
- Step 1: Write the proportion equation
557,770.19 : 769,728.84 = 303,121.40 : x - Step 2: Convert to fraction form
557,770.19/769,728.84 = 303,121.40/x - Step 3: Cross multiply
557,770.19x = 769,728.84 × 303,121.40 - Step 4: Simplify right side
557,770.19x = 233,321,283,601.18 - Step 5: Solve for x
x = 233,321,283,601.18/557,770.19 - Step 6: Final answer
x = 418,310.78
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1.5x scale
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.