Finding the Fourth Proportional to 727,424.13, 1,091,136.21 and 221,987.75
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Solution
The fourth proportional to 727,424.13, 1,091,136.21 and 221,987.75 is: 332,981.62
Step by Step Solution
- Step 1: Write the proportion equation
727,424.13 : 1,091,136.21 = 221,987.75 : x - Step 2: Convert to fraction form
727,424.13/1,091,136.21 = 221,987.75/x - Step 3: Cross multiply
727,424.13x = 1,091,136.21 × 221,987.75 - Step 4: Simplify right side
727,424.13x = 242,218,866,745.75 - Step 5: Solve for x
x = 242,218,866,745.75/727,424.13 - Step 6: Final answer
x = 332,981.62
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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.