Finding the Fourth Proportional to 511,391.99, 705,725.62 and 281,957.51
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Solution
The fourth proportional to 511,391.99, 705,725.62 and 281,957.51 is: 389,103.94
Step by Step Solution
- Step 1: Write the proportion equation
511,391.99 : 705,725.62 = 281,957.51 : x - Step 2: Convert to fraction form
511,391.99/705,725.62 = 281,957.51/x - Step 3: Cross multiply
511,391.99x = 705,725.62 × 281,957.51 - Step 4: Simplify right side
511,391.99x = 198,984,634,324.88 - Step 5: Solve for x
x = 198,984,634,324.88/511,391.99 - Step 6: Final answer
x = 389,103.94
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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.