Finding the Fourth Proportional to 721,184.58, 995,147.37 and 398,850.75
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Solution
The fourth proportional to 721,184.58, 995,147.37 and 398,850.75 is: 550,365.73
Step by Step Solution
- Step 1: Write the proportion equation
721,184.58 : 995,147.37 = 398,850.75 : x - Step 2: Convert to fraction form
721,184.58/995,147.37 = 398,850.75/x - Step 3: Cross multiply
721,184.58x = 995,147.37 × 398,850.75 - Step 4: Simplify right side
721,184.58x = 396,915,274,885.03 - Step 5: Solve for x
x = 396,915,274,885.03/721,184.58 - Step 6: Final answer
x = 550,365.73
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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.