Finding the Fourth Proportional to 738,191.82, 1,018,704.62 and 398,660.07
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Solution
The fourth proportional to 738,191.82, 1,018,704.62 and 398,660.07 is: 550,150.84
Step by Step Solution
- Step 1: Write the proportion equation
738,191.82 : 1,018,704.62 = 398,660.07 : x - Step 2: Convert to fraction form
738,191.82/1,018,704.62 = 398,660.07/x - Step 3: Cross multiply
738,191.82x = 1,018,704.62 × 398,660.07 - Step 4: Simplify right side
738,191.82x = 406,116,853,125.22 - Step 5: Solve for x
x = 406,116,853,125.22/738,191.82 - Step 6: Final answer
x = 550,150.84
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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.