Finding the Fourth Proportional to 641,780.66, 885,623.63 and 351,336.54
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Solution
The fourth proportional to 641,780.66, 885,623.63 and 351,336.54 is: 484,825.99
Step by Step Solution
- Step 1: Write the proportion equation
641,780.66 : 885,623.63 = 351,336.54 : x - Step 2: Convert to fraction form
641,780.66/885,623.63 = 351,336.54/x - Step 3: Cross multiply
641,780.66x = 885,623.63 × 351,336.54 - Step 4: Simplify right side
641,780.66x = 311,151,941,906.44 - Step 5: Solve for x
x = 311,151,941,906.44/641,780.66 - Step 6: Final answer
x = 484,825.99
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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.