Finding the Fourth Proportional to 394,706.75, 544,708.28 and 215,858.75
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Solution
The fourth proportional to 394,706.75, 544,708.28 and 215,858.75 is: 297,892.17
Step by Step Solution
- Step 1: Write the proportion equation
394,706.75 : 544,708.28 = 215,858.75 : x - Step 2: Convert to fraction form
394,706.75/544,708.28 = 215,858.75/x - Step 3: Cross multiply
394,706.75x = 544,708.28 × 215,858.75 - Step 4: Simplify right side
394,706.75x = 117,580,048,435.45 - Step 5: Solve for x
x = 117,580,048,435.45/394,706.75 - Step 6: Final answer
x = 297,892.17
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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.