Finding the Fourth Proportional to 394,476.70, 591,715.05 and 331,491.10
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Solution
The fourth proportional to 394,476.70, 591,715.05 and 331,491.10 is: 497,236.65
Step by Step Solution
- Step 1: Write the proportion equation
394,476.70 : 591,715.05 = 331,491.10 : x - Step 2: Convert to fraction form
394,476.70/591,715.05 = 331,491.10/x - Step 3: Cross multiply
394,476.70x = 591,715.05 × 331,491.10 - Step 4: Simplify right side
394,476.70x = 196,148,272,811.06 - Step 5: Solve for x
x = 196,148,272,811.06/394,476.70 - Step 6: Final answer
x = 497,236.65
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1.5x scale
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.