Finding the Fourth Proportional to 826,919.40, 1,240,724.70 and 266,125.80
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Solution
The fourth proportional to 826,919.40, 1,240,724.70 and 266,125.80 is: 399,299.92
Step by Step Solution
- Step 1: Write the proportion equation
826,919.40 : 1,240,724.70 = 266,125.80 : x - Step 2: Convert to fraction form
826,919.40/1,240,724.70 = 266,125.80/x - Step 3: Cross multiply
826,919.40x = 1,240,724.70 × 266,125.80 - Step 4: Simplify right side
826,919.40x = 330,188,853,367.26 - Step 5: Solve for x
x = 330,188,853,367.26/826,919.40 - Step 6: Final answer
x = 399,299.92
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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.