Finding the Fourth Proportional to 2,128,623.93, 3,190,163.54 and 864,974.25
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Solution
The fourth proportional to 2,128,623.93, 3,190,163.54 and 864,974.25 is: 1,296,334.82
Step by Step Solution
- Step 1: Write the proportion equation
2,128,623.93 : 3,190,163.54 = 864,974.25 : x - Step 2: Convert to fraction form
2,128,623.93/3,190,163.54 = 864,974.25/x - Step 3: Cross multiply
2,128,623.93x = 3,190,163.54 × 864,974.25 - Step 4: Simplify right side
2,128,623.93x = 2,759,409,311,063.97 - Step 5: Solve for x
x = 2,759,409,311,063.97/2,128,623.93 - Step 6: Final answer
x = 1,296,334.82
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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.