Finding the Fourth Proportional to 1,138,884.48, 1,571,523.84 and 629,517.12
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Solution
The fourth proportional to 1,138,884.48, 1,571,523.84 and 629,517.12 is: 868,658.04
Step by Step Solution
- Step 1: Write the proportion equation
1,138,884.48 : 1,571,523.84 = 629,517.12 : x - Step 2: Convert to fraction form
1,138,884.48/1,571,523.84 = 629,517.12/x - Step 3: Cross multiply
1,138,884.48x = 1,571,523.84 × 629,517.12 - Step 4: Simplify right side
1,138,884.48x = 989,301,161,768.14 - Step 5: Solve for x
x = 989,301,161,768.14/1,138,884.48 - Step 6: Final answer
x = 868,658.04
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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.