Finding the Fourth Proportional to 415,794.20, 622,769.70 and 321,995.80
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Solution
The fourth proportional to 415,794.20, 622,769.70 and 321,995.80 is: 482,280.00
Step by Step Solution
- Step 1: Write the proportion equation
415,794.20 : 622,769.70 = 321,995.80 : x - Step 2: Convert to fraction form
415,794.20/622,769.70 = 321,995.80/x - Step 3: Cross multiply
415,794.20x = 622,769.70 × 321,995.80 - Step 4: Simplify right side
415,794.20x = 200,529,227,767.26 - Step 5: Solve for x
x = 200,529,227,767.26/415,794.20 - Step 6: Final answer
x = 482,280.00
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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.