Finding the Fourth Proportional to 629,664.96, 868,912.20 and 343,178.88
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Solution
The fourth proportional to 629,664.96, 868,912.20 and 343,178.88 is: 473,572.99
Step by Step Solution
- Step 1: Write the proportion equation
629,664.96 : 868,912.20 = 343,178.88 : x - Step 2: Convert to fraction form
629,664.96/868,912.20 = 343,178.88/x - Step 3: Cross multiply
629,664.96x = 868,912.20 × 343,178.88 - Step 4: Simplify right side
629,664.96x = 298,192,315,614.34 - Step 5: Solve for x
x = 298,192,315,614.34/629,664.96 - Step 6: Final answer
x = 473,572.99
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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.