Finding the Fourth Proportional to 721,346.14, 995,532.42 and 415,433.44
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Solution
The fourth proportional to 721,346.14, 995,532.42 and 415,433.44 is: 573,341.19
Step by Step Solution
- Step 1: Write the proportion equation
721,346.14 : 995,532.42 = 415,433.44 : x - Step 2: Convert to fraction form
721,346.14/995,532.42 = 415,433.44/x - Step 3: Cross multiply
721,346.14x = 995,532.42 × 415,433.44 - Step 4: Simplify right side
721,346.14x = 413,577,457,872.13 - Step 5: Solve for x
x = 413,577,457,872.13/721,346.14 - Step 6: Final answer
x = 573,341.19
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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.