Finding the Fourth Proportional to 815,253.26, 1,222,236.74 and 515,101.28
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Solution
The fourth proportional to 815,253.26, 1,222,236.74 and 515,101.28 is: 772,245.56
Step by Step Solution
- Step 1: Write the proportion equation
815,253.26 : 1,222,236.74 = 515,101.28 : x - Step 2: Convert to fraction form
815,253.26/1,222,236.74 = 515,101.28/x - Step 3: Cross multiply
815,253.26x = 1,222,236.74 × 515,101.28 - Step 4: Simplify right side
815,253.26x = 629,575,704,413.60 - Step 5: Solve for x
x = 629,575,704,413.60/815,253.26 - Step 6: Final answer
x = 772,245.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.