Finding the Fourth Proportional to 419,720.40, 629,670.58 and 135,427.23
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Solution
The fourth proportional to 419,720.40, 629,670.58 and 135,427.23 is: 203,169.88
Step by Step Solution
- Step 1: Write the proportion equation
419,720.40 : 629,670.58 = 135,427.23 : x - Step 2: Convert to fraction form
419,720.40/629,670.58 = 135,427.23/x - Step 3: Cross multiply
419,720.40x = 629,670.58 × 135,427.23 - Step 4: Simplify right side
419,720.40x = 85,274,542,123.33 - Step 5: Solve for x
x = 85,274,542,123.33/419,720.40 - Step 6: Final answer
x = 203,169.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.