Finding the Fourth Proportional to 726,278.40, 1,089,067.68 and 252,953.28
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Solution
The fourth proportional to 726,278.40, 1,089,067.68 and 252,953.28 is: 379,308.05
Step by Step Solution
- Step 1: Write the proportion equation
726,278.40 : 1,089,067.68 = 252,953.28 : x - Step 2: Convert to fraction form
726,278.40/1,089,067.68 = 252,953.28/x - Step 3: Cross multiply
726,278.40x = 1,089,067.68 × 252,953.28 - Step 4: Simplify right side
726,278.40x = 275,483,241,797.99 - Step 5: Solve for x
x = 275,483,241,797.99/726,278.40 - Step 6: Final answer
x = 379,308.05
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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.