Finding the Fourth Proportional to 3,431,324.80, 5,148,235.20 and 1,187,689.60
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Solution
The fourth proportional to 3,431,324.80, 5,148,235.20 and 1,187,689.60 is: 1,781,966.37
Step by Step Solution
- Step 1: Write the proportion equation
3,431,324.80 : 5,148,235.20 = 1,187,689.60 : x - Step 2: Convert to fraction form
3,431,324.80/5,148,235.20 = 1,187,689.60/x - Step 3: Cross multiply
3,431,324.80x = 5,148,235.20 × 1,187,689.60 - Step 4: Simplify right side
3,431,324.80x = 6,114,505,405,393.92 - Step 5: Solve for x
x = 6,114,505,405,393.92/3,431,324.80 - Step 6: Final answer
x = 1,781,966.37
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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.