Finding the Fourth Proportional to 419,635.28, 629,638.99 and 219,908.19
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Solution
The fourth proportional to 419,635.28, 629,638.99 and 219,908.19 is: 329,959.79
Step by Step Solution
- Step 1: Write the proportion equation
419,635.28 : 629,638.99 = 219,908.19 : x - Step 2: Convert to fraction form
419,635.28/629,638.99 = 219,908.19/x - Step 3: Cross multiply
419,635.28x = 629,638.99 × 219,908.19 - Step 4: Simplify right side
419,635.28x = 138,462,770,644.33 - Step 5: Solve for x
x = 138,462,770,644.33/419,635.28 - Step 6: Final answer
x = 329,959.79
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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.