Finding the Fourth Proportional to 744,481.28, 1,027,566.68 and 422,379.92
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Solution
The fourth proportional to 744,481.28, 1,027,566.68 and 422,379.92 is: 582,987.84
Step by Step Solution
- Step 1: Write the proportion equation
744,481.28 : 1,027,566.68 = 422,379.92 : x - Step 2: Convert to fraction form
744,481.28/1,027,566.68 = 422,379.92/x - Step 3: Cross multiply
744,481.28x = 1,027,566.68 × 422,379.92 - Step 4: Simplify right side
744,481.28x = 434,023,532,550.08 - Step 5: Solve for x
x = 434,023,532,550.08/744,481.28 - Step 6: Final answer
x = 582,987.84
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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.