Finding the Fourth Proportional to 990,975.75, 1,486,537.97 and 281,060.97
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Solution
The fourth proportional to 990,975.75, 1,486,537.97 and 281,060.97 is: 421,612.54
Step by Step Solution
- Step 1: Write the proportion equation
990,975.75 : 1,486,537.97 = 281,060.97 : x - Step 2: Convert to fraction form
990,975.75/1,486,537.97 = 281,060.97/x - Step 3: Cross multiply
990,975.75x = 1,486,537.97 × 281,060.97 - Step 4: Simplify right side
990,975.75x = 417,807,802,384.73 - Step 5: Solve for x
x = 417,807,802,384.73/990,975.75 - Step 6: Final answer
x = 421,612.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.