Finding the Fourth Proportional to 494,193.30, 681,998.58 and 279,334.19
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Solution
The fourth proportional to 494,193.30, 681,998.58 and 279,334.19 is: 385,487.86
Step by Step Solution
- Step 1: Write the proportion equation
494,193.30 : 681,998.58 = 279,334.19 : x - Step 2: Convert to fraction form
494,193.30/681,998.58 = 279,334.19/x - Step 3: Cross multiply
494,193.30x = 681,998.58 × 279,334.19 - Step 4: Simplify right side
494,193.30x = 190,505,517,515.46 - Step 5: Solve for x
x = 190,505,517,515.46/494,193.30 - Step 6: Final answer
x = 385,487.86
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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.