Finding the Fourth Proportional to 419,989.70, 629,987.07 and 104,446.62
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Solution
The fourth proportional to 419,989.70, 629,987.07 and 104,446.62 is: 156,670.56
Step by Step Solution
- Step 1: Write the proportion equation
419,989.70 : 629,987.07 = 104,446.62 : x - Step 2: Convert to fraction form
419,989.70/629,987.07 = 104,446.62/x - Step 3: Cross multiply
419,989.70x = 629,987.07 × 104,446.62 - Step 4: Simplify right side
419,989.70x = 65,800,020,105.20 - Step 5: Solve for x
x = 65,800,020,105.20/419,989.70 - Step 6: Final answer
x = 156,670.56
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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.