Finding the Fourth Proportional to 419,748.09, 579,235.50 and 228,757.38
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Solution
The fourth proportional to 419,748.09, 579,235.50 and 228,757.38 is: 315,675.99
Step by Step Solution
- Step 1: Write the proportion equation
419,748.09 : 579,235.50 = 228,757.38 : x - Step 2: Convert to fraction form
419,748.09/579,235.50 = 228,757.38/x - Step 3: Cross multiply
419,748.09x = 579,235.50 × 228,757.38 - Step 4: Simplify right side
419,748.09x = 132,504,395,382.99 - Step 5: Solve for x
x = 132,504,395,382.99/419,748.09 - Step 6: Final answer
x = 315,675.99
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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.