Finding the Fourth Proportional to 394,140.24, 539,974.12 and 379,380.14
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Solution
The fourth proportional to 394,140.24, 539,974.12 and 379,380.14 is: 519,752.71
Step by Step Solution
- Step 1: Write the proportion equation
394,140.24 : 539,974.12 = 379,380.14 : x - Step 2: Convert to fraction form
394,140.24/539,974.12 = 379,380.14/x - Step 3: Cross multiply
394,140.24x = 539,974.12 × 379,380.14 - Step 4: Simplify right side
394,140.24x = 204,855,457,241.98 - Step 5: Solve for x
x = 204,855,457,241.98/394,140.24 - Step 6: Final answer
x = 519,752.71
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1.5x scale
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.