Finding the Fourth Proportional to 1,912,993.05, 2,640,217.42 and 1,453,351.26
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Solution
The fourth proportional to 1,912,993.05, 2,640,217.42 and 1,453,351.26 is: 2,005,842.78
Step by Step Solution
- Step 1: Write the proportion equation
1,912,993.05 : 2,640,217.42 = 1,453,351.26 : x - Step 2: Convert to fraction form
1,912,993.05/2,640,217.42 = 1,453,351.26/x - Step 3: Cross multiply
1,912,993.05x = 2,640,217.42 × 1,453,351.26 - Step 4: Simplify right side
1,912,993.05x = 3,837,163,306,764.19 - Step 5: Solve for x
x = 3,837,163,306,764.19/1,912,993.05 - Step 6: Final answer
x = 2,005,842.78
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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.