Finding the Fourth Proportional to 691,122.26, 953,758.26 and 385,190.12
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Solution
The fourth proportional to 691,122.26, 953,758.26 and 385,190.12 is: 531,567.68
Step by Step Solution
- Step 1: Write the proportion equation
691,122.26 : 953,758.26 = 385,190.12 : x - Step 2: Convert to fraction form
691,122.26/953,758.26 = 385,190.12/x - Step 3: Cross multiply
691,122.26x = 953,758.26 × 385,190.12 - Step 4: Simplify right side
691,122.26x = 367,378,253,851.60 - Step 5: Solve for x
x = 367,378,253,851.60/691,122.26 - Step 6: Final answer
x = 531,567.68
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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.