Finding the Fourth Proportional to 764,943.23, 1,147,556.74 and 252,643.84
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Solution
The fourth proportional to 764,943.23, 1,147,556.74 and 252,643.84 is: 379,012.62
Step by Step Solution
- Step 1: Write the proportion equation
764,943.23 : 1,147,556.74 = 252,643.84 : x - Step 2: Convert to fraction form
764,943.23/1,147,556.74 = 252,643.84/x - Step 3: Cross multiply
764,943.23x = 1,147,556.74 × 252,643.84 - Step 4: Simplify right side
764,943.23x = 289,923,141,411.48 - Step 5: Solve for x
x = 289,923,141,411.48/764,943.23 - Step 6: Final answer
x = 379,012.62
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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.