Finding the Fourth Proportional to 862,141.86, 1,293,212.79 and 263,106.18
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Solution
The fourth proportional to 862,141.86, 1,293,212.79 and 263,106.18 is: 394,659.27
Step by Step Solution
- Step 1: Write the proportion equation
862,141.86 : 1,293,212.79 = 263,106.18 : x - Step 2: Convert to fraction form
862,141.86/1,293,212.79 = 263,106.18/x - Step 3: Cross multiply
862,141.86x = 1,293,212.79 × 263,106.18 - Step 4: Simplify right side
862,141.86x = 340,252,277,104.04 - Step 5: Solve for x
x = 340,252,277,104.04/862,141.86 - Step 6: Final answer
x = 394,659.27
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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.