Finding the Fourth Proportional to 738,675.11, 1,019,452.65 and 428,645.99
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Solution
The fourth proportional to 738,675.11, 1,019,452.65 and 428,645.99 is: 591,578.47
Step by Step Solution
- Step 1: Write the proportion equation
738,675.11 : 1,019,452.65 = 428,645.99 : x - Step 2: Convert to fraction form
738,675.11/1,019,452.65 = 428,645.99/x - Step 3: Cross multiply
738,675.11x = 1,019,452.65 × 428,645.99 - Step 4: Simplify right side
738,675.11x = 436,984,290,417.37 - Step 5: Solve for x
x = 436,984,290,417.37/738,675.11 - Step 6: Final answer
x = 591,578.47
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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.