Finding the Fourth Proportional to 656,515.20, 984,772.80 and 213,283.20
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Solution
The fourth proportional to 656,515.20, 984,772.80 and 213,283.20 is: 319,924.80
Step by Step Solution
- Step 1: Write the proportion equation
656,515.20 : 984,772.80 = 213,283.20 : x - Step 2: Convert to fraction form
656,515.20/984,772.80 = 213,283.20/x - Step 3: Cross multiply
656,515.20x = 984,772.80 × 213,283.20 - Step 4: Simplify right side
656,515.20x = 210,035,494,056.96 - Step 5: Solve for x
x = 210,035,494,056.96/656,515.20 - Step 6: Final answer
x = 319,924.80
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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.