Finding the Fourth Proportional to 313,782.40, 471,063.60 and 312,343.84
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Solution
The fourth proportional to 313,782.40, 471,063.60 and 312,343.84 is: 468,903.97
Step by Step Solution
- Step 1: Write the proportion equation
313,782.40 : 471,063.60 = 312,343.84 : x - Step 2: Convert to fraction form
313,782.40/471,063.60 = 312,343.84/x - Step 3: Cross multiply
313,782.40x = 471,063.60 × 312,343.84 - Step 4: Simplify right side
313,782.40x = 147,133,813,708.22 - Step 5: Solve for x
x = 147,133,813,708.22/313,782.40 - Step 6: Final answer
x = 468,903.97
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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.