Finding the Fourth Proportional to 721,048.14, 995,121.18 and 415,135.44
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Solution
The fourth proportional to 721,048.14, 995,121.18 and 415,135.44 is: 572,929.94
Step by Step Solution
- Step 1: Write the proportion equation
721,048.14 : 995,121.18 = 415,135.44 : x - Step 2: Convert to fraction form
721,048.14/995,121.18 = 415,135.44/x - Step 3: Cross multiply
721,048.14x = 995,121.18 × 415,135.44 - Step 4: Simplify right side
721,048.14x = 413,110,068,912.62 - Step 5: Solve for x
x = 413,110,068,912.62/721,048.14 - Step 6: Final answer
x = 572,929.94
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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.