Finding the Fourth Proportional to 2,148,709.08, 2,965,220.07 and 1,181,912.94
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Solution
The fourth proportional to 2,148,709.08, 2,965,220.07 and 1,181,912.94 is: 1,631,040.70
Step by Step Solution
- Step 1: Write the proportion equation
2,148,709.08 : 2,965,220.07 = 1,181,912.94 : x - Step 2: Convert to fraction form
2,148,709.08/2,965,220.07 = 1,181,912.94/x - Step 3: Cross multiply
2,148,709.08x = 2,965,220.07 × 1,181,912.94 - Step 4: Simplify right side
2,148,709.08x = 3,504,631,970,680.71 - Step 5: Solve for x
x = 3,504,631,970,680.71/2,148,709.08 - Step 6: Final answer
x = 1,631,040.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.