Finding the Fourth Proportional to 890,769.80, 1,336,154.70 and 225,921.80
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Solution
The fourth proportional to 890,769.80, 1,336,154.70 and 225,921.80 is: 338,882.70
Step by Step Solution
- Step 1: Write the proportion equation
890,769.80 : 1,336,154.70 = 225,921.80 : x - Step 2: Convert to fraction form
890,769.80/1,336,154.70 = 225,921.80/x - Step 3: Cross multiply
890,769.80x = 1,336,154.70 × 225,921.80 - Step 4: Simplify right side
890,769.80x = 301,866,474,902.46 - Step 5: Solve for x
x = 301,866,474,902.46/890,769.80 - Step 6: Final answer
x = 338,882.70
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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.