Finding the Fourth Proportional to 721,108.76, 995,436.50 and 449,310.95
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Solution
The fourth proportional to 721,108.76, 995,436.50 and 449,310.95 is: 620,240.02
Step by Step Solution
- Step 1: Write the proportion equation
721,108.76 : 995,436.50 = 449,310.95 : x - Step 2: Convert to fraction form
721,108.76/995,436.50 = 449,310.95/x - Step 3: Cross multiply
721,108.76x = 995,436.50 × 449,310.95 - Step 4: Simplify right side
721,108.76x = 447,260,515,716.53 - Step 5: Solve for x
x = 447,260,515,716.53/721,108.76 - Step 6: Final answer
x = 620,240.02
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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.