Finding the Fourth Proportional to 851,815.40, 1,277,723.10 and 725,163.80
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Solution
The fourth proportional to 851,815.40, 1,277,723.10 and 725,163.80 is: 1,087,745.70
Step by Step Solution
- Step 1: Write the proportion equation
851,815.40 : 1,277,723.10 = 725,163.80 : x - Step 2: Convert to fraction form
851,815.40/1,277,723.10 = 725,163.80/x - Step 3: Cross multiply
851,815.40x = 1,277,723.10 × 725,163.80 - Step 4: Simplify right side
851,815.40x = 926,558,538,543.78 - Step 5: Solve for x
x = 926,558,538,543.78/851,815.40 - Step 6: Final answer
x = 1,087,745.70
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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.