Finding the Fourth Proportional to 394,489.70, 591,734.55 and 394,489.70
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Solution
The fourth proportional to 394,489.70, 591,734.55 and 394,489.70 is: 591,734.55
Step by Step Solution
- Step 1: Write the proportion equation
394,489.70 : 591,734.55 = 394,489.70 : x - Step 2: Convert to fraction form
394,489.70/591,734.55 = 394,489.70/x - Step 3: Cross multiply
394,489.70x = 591,734.55 × 394,489.70 - Step 4: Simplify right side
394,489.70x = 233,433,185,109.14 - Step 5: Solve for x
x = 233,433,185,109.14/394,489.70 - Step 6: Final answer
x = 591,734.55
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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.