Finding the Fourth Proportional to 738,674.11, 1,019,451.27 and 428,644.99
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Solution
The fourth proportional to 738,674.11, 1,019,451.27 and 428,644.99 is: 591,577.09
Step by Step Solution
- Step 1: Write the proportion equation
738,674.11 : 1,019,451.27 = 428,644.99 : x - Step 2: Convert to fraction form
738,674.11/1,019,451.27 = 428,644.99/x - Step 3: Cross multiply
738,674.11x = 1,019,451.27 × 428,644.99 - Step 4: Simplify right side
738,674.11x = 436,982,679,434.64 - Step 5: Solve for x
x = 436,982,679,434.64/738,674.11 - Step 6: Final answer
x = 591,577.09
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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.