Finding the Fourth Proportional to 511,537.80, 705,912.84 and 282,116.28
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Solution
The fourth proportional to 511,537.80, 705,912.84 and 282,116.28 is: 389,315.32
Step by Step Solution
- Step 1: Write the proportion equation
511,537.80 : 705,912.84 = 282,116.28 : x - Step 2: Convert to fraction form
511,537.80/705,912.84 = 282,116.28/x - Step 3: Cross multiply
511,537.80x = 705,912.84 × 282,116.28 - Step 4: Simplify right side
511,537.80x = 199,149,504,425.04 - Step 5: Solve for x
x = 199,149,504,425.04/511,537.80 - Step 6: Final answer
x = 389,315.32
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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.