Finding the Fourth Proportional to 494,349.05, 682,175.44 and 279,476.30
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Solution
The fourth proportional to 494,349.05, 682,175.44 and 279,476.30 is: 385,662.45
Step by Step Solution
- Step 1: Write the proportion equation
494,349.05 : 682,175.44 = 279,476.30 : x - Step 2: Convert to fraction form
494,349.05/682,175.44 = 279,476.30/x - Step 3: Cross multiply
494,349.05x = 682,175.44 × 279,476.30 - Step 4: Simplify right side
494,349.05x = 190,651,867,922.07 - Step 5: Solve for x
x = 190,651,867,922.07/494,349.05 - Step 6: Final answer
x = 385,662.45
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1.5x scale
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.