Finding the Fourth Proportional to 1,272,121.63, 1,755,453.60 and 699,162.26
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Solution
The fourth proportional to 1,272,121.63, 1,755,453.60 and 699,162.26 is: 964,803.11
Step by Step Solution
- Step 1: Write the proportion equation
1,272,121.63 : 1,755,453.60 = 699,162.26 : x - Step 2: Convert to fraction form
1,272,121.63/1,755,453.60 = 699,162.26/x - Step 3: Cross multiply
1,272,121.63x = 1,755,453.60 × 699,162.26 - Step 4: Simplify right side
1,272,121.63x = 1,227,346,897,523.87 - Step 5: Solve for x
x = 1,227,346,897,523.87/1,272,121.63 - Step 6: Final answer
x = 964,803.11
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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.