Finding the Fourth Proportional to 1,177,351.40, 1,765,861.20 and 378,531.44
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Solution
The fourth proportional to 1,177,351.40, 1,765,861.20 and 378,531.44 is: 567,743.82
Step by Step Solution
- Step 1: Write the proportion equation
1,177,351.40 : 1,765,861.20 = 378,531.44 : x - Step 2: Convert to fraction form
1,177,351.40/1,765,861.20 = 378,531.44/x - Step 3: Cross multiply
1,177,351.40x = 1,765,861.20 × 378,531.44 - Step 4: Simplify right side
1,177,351.40x = 668,433,982,876.13 - Step 5: Solve for x
x = 668,433,982,876.13/1,177,351.40 - Step 6: Final answer
x = 567,743.82
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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.