Finding the Fourth Proportional to 511,092.05, 705,311.67 and 281,657.56
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Solution
The fourth proportional to 511,092.05, 705,311.67 and 281,657.56 is: 388,689.99
Step by Step Solution
- Step 1: Write the proportion equation
511,092.05 : 705,311.67 = 281,657.56 : x - Step 2: Convert to fraction form
511,092.05/705,311.67 = 281,657.56/x - Step 3: Cross multiply
511,092.05x = 705,311.67 × 281,657.56 - Step 4: Simplify right side
511,092.05x = 198,656,364,011.73 - Step 5: Solve for x
x = 198,656,364,011.73/511,092.05 - Step 6: Final answer
x = 388,689.99
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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.