Finding the Fourth Proportional to 419,647.29, 629,470.98 and 120,128.96
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Solution
The fourth proportional to 419,647.29, 629,470.98 and 120,128.96 is: 180,193.45
Step by Step Solution
- Step 1: Write the proportion equation
419,647.29 : 629,470.98 = 120,128.96 : x - Step 2: Convert to fraction form
419,647.29/629,470.98 = 120,128.96/x - Step 3: Cross multiply
419,647.29x = 629,470.98 × 120,128.96 - Step 4: Simplify right side
419,647.29x = 75,617,691,030.23 - Step 5: Solve for x
x = 75,617,691,030.23/419,647.29 - Step 6: Final answer
x = 180,193.45
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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.