Finding the Fourth Proportional to 503,722.80, 755,584.20 and 129,745.80
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Solution
The fourth proportional to 503,722.80, 755,584.20 and 129,745.80 is: 194,618.70
Step by Step Solution
- Step 1: Write the proportion equation
503,722.80 : 755,584.20 = 129,745.80 : x - Step 2: Convert to fraction form
503,722.80/755,584.20 = 129,745.80/x - Step 3: Cross multiply
503,722.80x = 755,584.20 × 129,745.80 - Step 4: Simplify right side
503,722.80x = 98,033,876,496.36 - Step 5: Solve for x
x = 98,033,876,496.36/503,722.80 - Step 6: Final answer
x = 194,618.70
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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.