Finding the Fourth Proportional to 408,093.80, 612,140.70 and 329,361.80
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Solution
The fourth proportional to 408,093.80, 612,140.70 and 329,361.80 is: 494,042.70
Step by Step Solution
- Step 1: Write the proportion equation
408,093.80 : 612,140.70 = 329,361.80 : x - Step 2: Convert to fraction form
408,093.80/612,140.70 = 329,361.80/x - Step 3: Cross multiply
408,093.80x = 612,140.70 × 329,361.80 - Step 4: Simplify right side
408,093.80x = 201,615,762,805.26 - Step 5: Solve for x
x = 201,615,762,805.26/408,093.80 - Step 6: Final answer
x = 494,042.70
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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.