Finding the Fourth Proportional to 394,721.60, 588,330.12 and 372,302.44
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Solution
The fourth proportional to 394,721.60, 588,330.12 and 372,302.44 is: 554,914.50
Step by Step Solution
- Step 1: Write the proportion equation
394,721.60 : 588,330.12 = 372,302.44 : x - Step 2: Convert to fraction form
394,721.60/588,330.12 = 372,302.44/x - Step 3: Cross multiply
394,721.60x = 588,330.12 × 372,302.44 - Step 4: Simplify right side
394,721.60x = 219,036,739,201.49 - Step 5: Solve for x
x = 219,036,739,201.49/394,721.60 - Step 6: Final answer
x = 554,914.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.