Finding the Fourth Proportional to 775,439.13, 1,163,213.98 and 206,817.00
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Solution
The fourth proportional to 775,439.13, 1,163,213.98 and 206,817.00 is: 310,240.25
Step by Step Solution
- Step 1: Write the proportion equation
775,439.13 : 1,163,213.98 = 206,817.00 : x - Step 2: Convert to fraction form
775,439.13/1,163,213.98 = 206,817.00/x - Step 3: Cross multiply
775,439.13x = 1,163,213.98 × 206,817.00 - Step 4: Simplify right side
775,439.13x = 240,572,429,546.67 - Step 5: Solve for x
x = 240,572,429,546.67/775,439.13 - Step 6: Final answer
x = 310,240.25
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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.