Finding the Fourth Proportional to 827,129.40, 1,240,694.10 and 266,163.90
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Solution
The fourth proportional to 827,129.40, 1,240,694.10 and 266,163.90 is: 399,245.85
Step by Step Solution
- Step 1: Write the proportion equation
827,129.40 : 1,240,694.10 = 266,163.90 : x - Step 2: Convert to fraction form
827,129.40/1,240,694.10 = 266,163.90/x - Step 3: Cross multiply
827,129.40x = 1,240,694.10 × 266,163.90 - Step 4: Simplify right side
827,129.40x = 330,227,980,362.99 - Step 5: Solve for x
x = 330,227,980,362.99/827,129.40 - Step 6: Final answer
x = 399,245.85
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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.