Finding the Fourth Proportional to 1,215,190.08, 1,821,199.68 and 879,361.92
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Solution
The fourth proportional to 1,215,190.08, 1,821,199.68 and 879,361.92 is: 1,317,895.59
Step by Step Solution
- Step 1: Write the proportion equation
1,215,190.08 : 1,821,199.68 = 879,361.92 : x - Step 2: Convert to fraction form
1,215,190.08/1,821,199.68 = 879,361.92/x - Step 3: Cross multiply
1,215,190.08x = 1,821,199.68 × 879,361.92 - Step 4: Simplify right side
1,215,190.08x = 1,601,493,647,308.19 - Step 5: Solve for x
x = 1,601,493,647,308.19/1,215,190.08 - Step 6: Final answer
x = 1,317,895.59
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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.