Finding the Fourth Proportional to 721,736.57, 995,909.09 and 415,913.17
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Solution
The fourth proportional to 721,736.57, 995,909.09 and 415,913.17 is: 573,909.82
Step by Step Solution
- Step 1: Write the proportion equation
721,736.57 : 995,909.09 = 415,913.17 : x - Step 2: Convert to fraction form
721,736.57/995,909.09 = 415,913.17/x - Step 3: Cross multiply
721,736.57x = 995,909.09 × 415,913.17 - Step 4: Simplify right side
721,736.57x = 414,211,702,084.38 - Step 5: Solve for x
x = 414,211,702,084.38/721,736.57 - Step 6: Final answer
x = 573,909.82
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1.5x scale
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.