Finding the Fourth Proportional to 394,129.23, 539,959.05 and 379,369.14
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Solution
The fourth proportional to 394,129.23, 539,959.05 and 379,369.14 is: 519,737.65
Step by Step Solution
- Step 1: Write the proportion equation
394,129.23 : 539,959.05 = 379,369.14 : x - Step 2: Convert to fraction form
394,129.23/539,959.05 = 379,369.14/x - Step 3: Cross multiply
394,129.23x = 539,959.05 × 379,369.14 - Step 4: Simplify right side
394,129.23x = 204,843,800,433.72 - Step 5: Solve for x
x = 204,843,800,433.72/394,129.23 - Step 6: Final answer
x = 519,737.65
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.