Finding the Fourth Proportional to 641,729.42, 885,597.06 and 351,336.09
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Solution
The fourth proportional to 641,729.42, 885,597.06 and 351,336.09 is: 484,849.53
Step by Step Solution
- Step 1: Write the proportion equation
641,729.42 : 885,597.06 = 351,336.09 : x - Step 2: Convert to fraction form
641,729.42/885,597.06 = 351,336.09/x - Step 3: Cross multiply
641,729.42x = 885,597.06 × 351,336.09 - Step 4: Simplify right side
641,729.42x = 311,142,208,375.90 - Step 5: Solve for x
x = 311,142,208,375.90/641,729.42 - Step 6: Final answer
x = 484,849.53
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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.