Finding the Fourth Proportional to 1,485,121.50, 2,227,325.45 and 685,634.94
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Solution
The fourth proportional to 1,485,121.50, 2,227,325.45 and 685,634.94 is: 1,028,287.68
Step by Step Solution
- Step 1: Write the proportion equation
1,485,121.50 : 2,227,325.45 = 685,634.94 : x - Step 2: Convert to fraction form
1,485,121.50/2,227,325.45 = 685,634.94/x - Step 3: Cross multiply
1,485,121.50x = 2,227,325.45 × 685,634.94 - Step 4: Simplify right side
1,485,121.50x = 1,527,132,147,843.05 - Step 5: Solve for x
x = 1,527,132,147,843.05/1,485,121.50 - Step 6: Final answer
x = 1,028,287.68
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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.