Finding the Fourth Proportional to 656,811.20, 984,439.20 and 277,731.20
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Solution
The fourth proportional to 656,811.20, 984,439.20 and 277,731.20 is: 416,267.99
Step by Step Solution
- Step 1: Write the proportion equation
656,811.20 : 984,439.20 = 277,731.20 : x - Step 2: Convert to fraction form
656,811.20/984,439.20 = 277,731.20/x - Step 3: Cross multiply
656,811.20x = 984,439.20 × 277,731.20 - Step 4: Simplify right side
656,811.20x = 273,409,480,343.04 - Step 5: Solve for x
x = 273,409,480,343.04/656,811.20 - Step 6: Final answer
x = 416,267.99
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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.