Finding the Fourth Proportional to 5,091,775.40, 7,639,257.18 and 1,682,457.46
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Solution
The fourth proportional to 5,091,775.40, 7,639,257.18 and 1,682,457.46 is: 2,524,212.92
Step by Step Solution
- Step 1: Write the proportion equation
5,091,775.40 : 7,639,257.18 = 1,682,457.46 : x - Step 2: Convert to fraction form
5,091,775.40/7,639,257.18 = 1,682,457.46/x - Step 3: Cross multiply
5,091,775.40x = 7,639,257.18 × 1,682,457.46 - Step 4: Simplify right side
5,091,775.40x = 12,852,725,231,349.56 - Step 5: Solve for x
x = 12,852,725,231,349.56/5,091,775.40 - Step 6: Final answer
x = 2,524,212.92
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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.