Finding the Fourth Proportional to 806,988.24, 1,211,400.90 and 408,079.44
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Solution
The fourth proportional to 806,988.24, 1,211,400.90 and 408,079.44 is: 612,583.65
Step by Step Solution
- Step 1: Write the proportion equation
806,988.24 : 1,211,400.90 = 408,079.44 : x - Step 2: Convert to fraction form
806,988.24/1,211,400.90 = 408,079.44/x - Step 3: Cross multiply
806,988.24x = 1,211,400.90 × 408,079.44 - Step 4: Simplify right side
806,988.24x = 494,347,800,887.50 - Step 5: Solve for x
x = 494,347,800,887.50/806,988.24 - Step 6: Final answer
x = 612,583.65
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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.