Finding the Fourth Proportional to 738,170.73, 1,018,675.62 and 398,638.98
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Solution
The fourth proportional to 738,170.73, 1,018,675.62 and 398,638.98 is: 550,121.80
Step by Step Solution
- Step 1: Write the proportion equation
738,170.73 : 1,018,675.62 = 398,638.98 : x - Step 2: Convert to fraction form
738,170.73/1,018,675.62 = 398,638.98/x - Step 3: Cross multiply
738,170.73x = 1,018,675.62 × 398,638.98 - Step 4: Simplify right side
738,170.73x = 406,083,810,107.67 - Step 5: Solve for x
x = 406,083,810,107.67/738,170.73 - Step 6: Final answer
x = 550,121.80
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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.