Finding the Fourth Proportional to 1,392,346.26, 2,088,521.01 and 381,476.79
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Solution
The fourth proportional to 1,392,346.26, 2,088,521.01 and 381,476.79 is: 572,215.63
Step by Step Solution
- Step 1: Write the proportion equation
1,392,346.26 : 2,088,521.01 = 381,476.79 : x - Step 2: Convert to fraction form
1,392,346.26/2,088,521.01 = 381,476.79/x - Step 3: Cross multiply
1,392,346.26x = 2,088,521.01 × 381,476.79 - Step 4: Simplify right side
1,392,346.26x = 796,722,290,742.36 - Step 5: Solve for x
x = 796,722,290,742.36/1,392,346.26 - Step 6: Final answer
x = 572,215.63
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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.