Finding the Fourth Proportional to 681,299.80, 1,022,069.76 and 281,716.68
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Solution
The fourth proportional to 681,299.80, 1,022,069.76 and 281,716.68 is: 422,624.66
Step by Step Solution
- Step 1: Write the proportion equation
681,299.80 : 1,022,069.76 = 281,716.68 : x - Step 2: Convert to fraction form
681,299.80/1,022,069.76 = 281,716.68/x - Step 3: Cross multiply
681,299.80x = 1,022,069.76 × 281,716.68 - Step 4: Simplify right side
681,299.80x = 287,934,099,515.60 - Step 5: Solve for x
x = 287,934,099,515.60/681,299.80 - Step 6: Final answer
x = 422,624.66
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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.