Finding the Fourth Proportional to 858,775.80, 1,288,163.70 and 814,489.05
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Solution
The fourth proportional to 858,775.80, 1,288,163.70 and 814,489.05 is: 1,221,733.58
Step by Step Solution
- Step 1: Write the proportion equation
858,775.80 : 1,288,163.70 = 814,489.05 : x - Step 2: Convert to fraction form
858,775.80/1,288,163.70 = 814,489.05/x - Step 3: Cross multiply
858,775.80x = 1,288,163.70 × 814,489.05 - Step 4: Simplify right side
858,775.80x = 1,049,195,228,257.49 - Step 5: Solve for x
x = 1,049,195,228,257.49/858,775.80 - Step 6: Final answer
x = 1,221,733.58
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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.