Finding the Fourth Proportional to 394,427.70, 591,641.55 and 394,427.70
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Solution
The fourth proportional to 394,427.70, 591,641.55 and 394,427.70 is: 591,641.55
Step by Step Solution
- Step 1: Write the proportion equation
394,427.70 : 591,641.55 = 394,427.70 : x - Step 2: Convert to fraction form
394,427.70/591,641.55 = 394,427.70/x - Step 3: Cross multiply
394,427.70x = 591,641.55 × 394,427.70 - Step 4: Simplify right side
394,427.70x = 233,359,815,790.94 - Step 5: Solve for x
x = 233,359,815,790.94/394,427.70 - Step 6: Final answer
x = 591,641.55
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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.