Finding the Fourth Proportional to 494,012.58, 681,728.46 and 279,147.99
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Solution
The fourth proportional to 494,012.58, 681,728.46 and 279,147.99 is: 385,219.20
Step by Step Solution
- Step 1: Write the proportion equation
494,012.58 : 681,728.46 = 279,147.99 : x - Step 2: Convert to fraction form
494,012.58/681,728.46 = 279,147.99/x - Step 3: Cross multiply
494,012.58x = 681,728.46 × 279,147.99 - Step 4: Simplify right side
494,012.58x = 190,303,129,334.80 - Step 5: Solve for x
x = 190,303,129,334.80/494,012.58 - Step 6: Final answer
x = 385,219.20
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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.