Finding the Fourth Proportional to 870,706.62, 1,306,163.77 and 421,104.41
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Solution
The fourth proportional to 870,706.62, 1,306,163.77 and 421,104.41 is: 631,706.84
Step by Step Solution
- Step 1: Write the proportion equation
870,706.62 : 1,306,163.77 = 421,104.41 : x - Step 2: Convert to fraction form
870,706.62/1,306,163.77 = 421,104.41/x - Step 3: Cross multiply
870,706.62x = 1,306,163.77 × 421,104.41 - Step 4: Simplify right side
870,706.62x = 550,031,323,729.23 - Step 5: Solve for x
x = 550,031,323,729.23/870,706.62 - Step 6: Final answer
x = 631,706.84
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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.