Finding the Fourth Proportional to 488,955.68, 675,088.84 and 305,474.88
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Solution
The fourth proportional to 488,955.68, 675,088.84 and 305,474.88 is: 421,761.50
Step by Step Solution
- Step 1: Write the proportion equation
488,955.68 : 675,088.84 = 305,474.88 : x - Step 2: Convert to fraction form
488,955.68/675,088.84 = 305,474.88/x - Step 3: Cross multiply
488,955.68x = 675,088.84 × 305,474.88 - Step 4: Simplify right side
488,955.68x = 206,222,682,388.34 - Step 5: Solve for x
x = 206,222,682,388.34/488,955.68 - Step 6: Final answer
x = 421,761.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.