Finding the Fourth Proportional to 394,503.31, 591,754.94 and 327,991.15
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Solution
The fourth proportional to 394,503.31, 591,754.94 and 327,991.15 is: 491,986.71
Step by Step Solution
- Step 1: Write the proportion equation
394,503.31 : 591,754.94 = 327,991.15 : x - Step 2: Convert to fraction form
394,503.31/591,754.94 = 327,991.15/x - Step 3: Cross multiply
394,503.31x = 591,754.94 × 327,991.15 - Step 4: Simplify right side
394,503.31x = 194,090,384,108.76 - Step 5: Solve for x
x = 194,090,384,108.76/394,503.31 - Step 6: Final answer
x = 491,986.71
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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.