Finding the Fourth Proportional to 505,915.29, 698,135.68 and 279,546.21
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Solution
The fourth proportional to 505,915.29, 698,135.68 and 279,546.21 is: 385,758.62
Step by Step Solution
- Step 1: Write the proportion equation
505,915.29 : 698,135.68 = 279,546.21 : x - Step 2: Convert to fraction form
505,915.29/698,135.68 = 279,546.21/x - Step 3: Cross multiply
505,915.29x = 698,135.68 × 279,546.21 - Step 4: Simplify right side
505,915.29x = 195,161,179,919.09 - Step 5: Solve for x
x = 195,161,179,919.09/505,915.29 - Step 6: Final answer
x = 385,758.62
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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.