Finding the Fourth Proportional to 781,891.44, 1,078,453.84 and 717,568.48
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Solution
The fourth proportional to 781,891.44, 1,078,453.84 and 717,568.48 is: 989,733.92
Step by Step Solution
- Step 1: Write the proportion equation
781,891.44 : 1,078,453.84 = 717,568.48 : x - Step 2: Convert to fraction form
781,891.44/1,078,453.84 = 717,568.48/x - Step 3: Cross multiply
781,891.44x = 1,078,453.84 × 717,568.48 - Step 4: Simplify right side
781,891.44x = 773,864,482,718.96 - Step 5: Solve for x
x = 773,864,482,718.96/781,891.44 - Step 6: Final answer
x = 989,733.92
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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.