Finding the Fourth Proportional to 1,392,239.63, 2,088,361.09 and 381,370.30
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Solution
The fourth proportional to 1,392,239.63, 2,088,361.09 and 381,370.30 is: 572,055.90
Step by Step Solution
- Step 1: Write the proportion equation
1,392,239.63 : 2,088,361.09 = 381,370.30 : x - Step 2: Convert to fraction form
1,392,239.63/2,088,361.09 = 381,370.30/x - Step 3: Cross multiply
1,392,239.63x = 2,088,361.09 × 381,370.30 - Step 4: Simplify right side
1,392,239.63x = 796,438,895,401.63 - Step 5: Solve for x
x = 796,438,895,401.63/1,392,239.63 - Step 6: Final answer
x = 572,055.90
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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.