Finding the Fourth Proportional to 791,163.69, 1,091,804.90 and 428,589.05
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Solution
The fourth proportional to 791,163.69, 1,091,804.90 and 428,589.05 is: 591,452.35
Step by Step Solution
- Step 1: Write the proportion equation
791,163.69 : 1,091,804.90 = 428,589.05 : x - Step 2: Convert to fraction form
791,163.69/1,091,804.90 = 428,589.05/x - Step 3: Cross multiply
791,163.69x = 1,091,804.90 × 428,589.05 - Step 4: Simplify right side
791,163.69x = 467,935,620,963.92 - Step 5: Solve for x
x = 467,935,620,963.92/791,163.69 - Step 6: Final answer
x = 591,452.35
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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.