Finding the Fourth Proportional to 2,215,756.40, 3,321,010.20 and 1,654,134.80
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Solution
The fourth proportional to 2,215,756.40, 3,321,010.20 and 1,654,134.80 is: 2,479,243.00
Step by Step Solution
- Step 1: Write the proportion equation
2,215,756.40 : 3,321,010.20 = 1,654,134.80 : x - Step 2: Convert to fraction form
2,215,756.40/3,321,010.20 = 1,654,134.80/x - Step 3: Cross multiply
2,215,756.40x = 3,321,010.20 × 1,654,134.80 - Step 4: Simplify right side
2,215,756.40x = 5,493,398,542,974.96 - Step 5: Solve for x
x = 5,493,398,542,974.96/2,215,756.40 - Step 6: Final answer
x = 2,479,243.00
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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.