Finding the Fourth Proportional to 419,760.09, 579,252.06 and 228,769.38
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Solution
The fourth proportional to 419,760.09, 579,252.06 and 228,769.38 is: 315,692.55
Step by Step Solution
- Step 1: Write the proportion equation
419,760.09 : 579,252.06 = 228,769.38 : x - Step 2: Convert to fraction form
419,760.09/579,252.06 = 228,769.38/x - Step 3: Cross multiply
419,760.09x = 579,252.06 × 228,769.38 - Step 4: Simplify right side
419,760.09x = 132,515,134,629.92 - Step 5: Solve for x
x = 132,515,134,629.92/419,760.09 - Step 6: Final answer
x = 315,692.55
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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.