Finding the Fourth Proportional to 804,611.40, 1,207,694.70 and 405,702.60
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Solution
The fourth proportional to 804,611.40, 1,207,694.70 and 405,702.60 is: 608,945.98
Step by Step Solution
- Step 1: Write the proportion equation
804,611.40 : 1,207,694.70 = 405,702.60 : x - Step 2: Convert to fraction form
804,611.40/1,207,694.70 = 405,702.60/x - Step 3: Cross multiply
804,611.40x = 1,207,694.70 × 405,702.60 - Step 4: Simplify right side
804,611.40x = 489,964,879,796.22 - Step 5: Solve for x
x = 489,964,879,796.22/804,611.40 - Step 6: Final answer
x = 608,945.98
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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.