Finding the Fourth Proportional to 751,409.74, 1,126,589.64 and 278,033.68
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Solution
The fourth proportional to 751,409.74, 1,126,589.64 and 278,033.68 is: 416,856.27
Step by Step Solution
- Step 1: Write the proportion equation
751,409.74 : 1,126,589.64 = 278,033.68 : x - Step 2: Convert to fraction form
751,409.74/1,126,589.64 = 278,033.68/x - Step 3: Cross multiply
751,409.74x = 1,126,589.64 × 278,033.68 - Step 4: Simplify right side
751,409.74x = 313,229,863,459.08 - Step 5: Solve for x
x = 313,229,863,459.08/751,409.74 - Step 6: Final answer
x = 416,856.27
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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.