Finding the Fourth Proportional to 557,178.84, 769,234.97 and 339,469.67
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Solution
The fourth proportional to 557,178.84, 769,234.97 and 339,469.67 is: 468,668.09
Step by Step Solution
- Step 1: Write the proportion equation
557,178.84 : 769,234.97 = 339,469.67 : x - Step 2: Convert to fraction form
557,178.84/769,234.97 = 339,469.67/x - Step 3: Cross multiply
557,178.84x = 769,234.97 × 339,469.67 - Step 4: Simplify right side
557,178.84x = 261,131,944,190.12 - Step 5: Solve for x
x = 261,131,944,190.12/557,178.84 - Step 6: Final answer
x = 468,668.09
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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.