Finding the Fourth Proportional to 629,591.63, 868,811.09 and 343,105.56
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Solution
The fourth proportional to 629,591.63, 868,811.09 and 343,105.56 is: 473,471.85
Step by Step Solution
- Step 1: Write the proportion equation
629,591.63 : 868,811.09 = 343,105.56 : x - Step 2: Convert to fraction form
629,591.63/868,811.09 = 343,105.56/x - Step 3: Cross multiply
629,591.63x = 868,811.09 × 343,105.56 - Step 4: Simplify right side
629,591.63x = 298,093,913,853.13 - Step 5: Solve for x
x = 298,093,913,853.13/629,591.63 - Step 6: Final answer
x = 473,471.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.