Finding the Fourth Proportional to 1,292,589.67, 1,939,175.25 and 394,122.23
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Solution
The fourth proportional to 1,292,589.67, 1,939,175.25 and 394,122.23 is: 591,272.00
Step by Step Solution
- Step 1: Write the proportion equation
1,292,589.67 : 1,939,175.25 = 394,122.23 : x - Step 2: Convert to fraction form
1,292,589.67/1,939,175.25 = 394,122.23/x - Step 3: Cross multiply
1,292,589.67x = 1,939,175.25 × 394,122.23 - Step 4: Simplify right side
1,292,589.67x = 764,272,078,491.15 - Step 5: Solve for x
x = 764,272,078,491.15/1,292,589.67 - Step 6: Final answer
x = 591,272.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.