Finding the Fourth Proportional to 664,611.80, 996,917.70 and 327,813.80
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Solution
The fourth proportional to 664,611.80, 996,917.70 and 327,813.80 is: 491,720.70
Step by Step Solution
- Step 1: Write the proportion equation
664,611.80 : 996,917.70 = 327,813.80 : x - Step 2: Convert to fraction form
664,611.80/996,917.70 = 327,813.80/x - Step 3: Cross multiply
664,611.80x = 996,917.70 × 327,813.80 - Step 4: Simplify right side
664,611.80x = 326,803,379,524.26 - Step 5: Solve for x
x = 326,803,379,524.26/664,611.80 - Step 6: Final answer
x = 491,720.70
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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.