Finding the Fourth Proportional to 721,334.22, 995,451.69 and 415,465.53
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Solution
The fourth proportional to 721,334.22, 995,451.69 and 415,465.53 is: 573,348.46
Step by Step Solution
- Step 1: Write the proportion equation
721,334.22 : 995,451.69 = 415,465.53 : x - Step 2: Convert to fraction form
721,334.22/995,451.69 = 415,465.53/x - Step 3: Cross multiply
721,334.22x = 995,451.69 × 415,465.53 - Step 4: Simplify right side
721,334.22x = 413,575,863,975.25 - Step 5: Solve for x
x = 413,575,863,975.25/721,334.22 - Step 6: Final answer
x = 573,348.46
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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.