Finding the Fourth Proportional to 721,744.19, 995,895.99 and 415,760.79
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Solution
The fourth proportional to 721,744.19, 995,895.99 and 415,760.79 is: 573,685.96
Step by Step Solution
- Step 1: Write the proportion equation
721,744.19 : 995,895.99 = 415,760.79 : x - Step 2: Convert to fraction form
721,744.19/995,895.99 = 415,760.79/x - Step 3: Cross multiply
721,744.19x = 995,895.99 × 415,760.79 - Step 4: Simplify right side
721,744.19x = 414,054,503,560.23 - Step 5: Solve for x
x = 414,054,503,560.23/721,744.19 - Step 6: Final answer
x = 573,685.96
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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.