Finding the Fourth Proportional to 738,157.91, 1,018,657.96 and 398,626.16
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Solution
The fourth proportional to 738,157.91, 1,018,657.96 and 398,626.16 is: 550,104.12
Step by Step Solution
- Step 1: Write the proportion equation
738,157.91 : 1,018,657.96 = 398,626.16 : x - Step 2: Convert to fraction form
738,157.91/1,018,657.96 = 398,626.16/x - Step 3: Cross multiply
738,157.91x = 1,018,657.96 × 398,626.16 - Step 4: Simplify right side
738,157.91x = 406,063,704,858.38 - Step 5: Solve for x
x = 406,063,704,858.38/738,157.91 - Step 6: Final answer
x = 550,104.12
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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.