Finding the Fourth Proportional to 744,821.20, 1,117,231.80 and 183,855.70
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Solution
The fourth proportional to 744,821.20, 1,117,231.80 and 183,855.70 is: 275,783.55
Step by Step Solution
- Step 1: Write the proportion equation
744,821.20 : 1,117,231.80 = 183,855.70 : x - Step 2: Convert to fraction form
744,821.20/1,117,231.80 = 183,855.70/x - Step 3: Cross multiply
744,821.20x = 1,117,231.80 × 183,855.70 - Step 4: Simplify right side
744,821.20x = 205,409,434,651.26 - Step 5: Solve for x
x = 205,409,434,651.26/744,821.20 - Step 6: Final answer
x = 275,783.55
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Similar ratio
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1.5x scale
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.