Finding the Fourth Proportional to 808,240.60, 1,212,245.70 and 275,786.20
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Solution
The fourth proportional to 808,240.60, 1,212,245.70 and 275,786.20 is: 413,639.99
Step by Step Solution
- Step 1: Write the proportion equation
808,240.60 : 1,212,245.70 = 275,786.20 : x - Step 2: Convert to fraction form
808,240.60/1,212,245.70 = 275,786.20/x - Step 3: Cross multiply
808,240.60x = 1,212,245.70 × 275,786.20 - Step 4: Simplify right side
808,240.60x = 334,320,635,069.34 - Step 5: Solve for x
x = 334,320,635,069.34/808,240.60 - Step 6: Final answer
x = 413,639.99
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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.