Finding the Fourth Proportional to 861,190.05, 1,188,653.22 and 667,214.09
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Solution
The fourth proportional to 861,190.05, 1,188,653.22 and 667,214.09 is: 920,918.87
Step by Step Solution
- Step 1: Write the proportion equation
861,190.05 : 1,188,653.22 = 667,214.09 : x - Step 2: Convert to fraction form
861,190.05/1,188,653.22 = 667,214.09/x - Step 3: Cross multiply
861,190.05x = 1,188,653.22 × 667,214.09 - Step 4: Simplify right side
861,190.05x = 793,086,170,564.60 - Step 5: Solve for x
x = 793,086,170,564.60/861,190.05 - Step 6: Final answer
x = 920,918.87
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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.