Finding the Fourth Proportional to 419,738.53, 579,224.50 and 228,748.09
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Solution
The fourth proportional to 419,738.53, 579,224.50 and 228,748.09 is: 315,664.37
Step by Step Solution
- Step 1: Write the proportion equation
419,738.53 : 579,224.50 = 228,748.09 : x - Step 2: Convert to fraction form
419,738.53/579,224.50 = 228,748.09/x - Step 3: Cross multiply
419,738.53x = 579,224.50 × 228,748.09 - Step 4: Simplify right side
419,738.53x = 132,496,498,056.21 - Step 5: Solve for x
x = 132,496,498,056.21/419,738.53 - Step 6: Final answer
x = 315,664.37
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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.