Finding the Fourth Proportional to 557,476.97, 769,470.18 and 328,107.85
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Solution
The fourth proportional to 557,476.97, 769,470.18 and 328,107.85 is: 452,878.27
Step by Step Solution
- Step 1: Write the proportion equation
557,476.97 : 769,470.18 = 328,107.85 : x - Step 2: Convert to fraction form
557,476.97/769,470.18 = 328,107.85/x - Step 3: Cross multiply
557,476.97x = 769,470.18 × 328,107.85 - Step 4: Simplify right side
557,476.97x = 252,469,204,475.24 - Step 5: Solve for x
x = 252,469,204,475.24/557,476.97 - Step 6: Final answer
x = 452,878.27
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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.