Finding the Fourth Proportional to 1,392,342.14, 2,088,514.82 and 381,472.87
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Solution
The fourth proportional to 1,392,342.14, 2,088,514.82 and 381,472.87 is: 572,209.75
Step by Step Solution
- Step 1: Write the proportion equation
1,392,342.14 : 2,088,514.82 = 381,472.87 : x - Step 2: Convert to fraction form
1,392,342.14/2,088,514.82 = 381,472.87/x - Step 3: Cross multiply
1,392,342.14x = 2,088,514.82 × 381,472.87 - Step 4: Simplify right side
1,392,342.14x = 796,711,742,422.93 - Step 5: Solve for x
x = 796,711,742,422.93/1,392,342.14 - Step 6: Final answer
x = 572,209.75
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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.