Finding the Fourth Proportional to 2,686,940.70, 3,707,810.20 and 1,479,716.70
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Solution
The fourth proportional to 2,686,940.70, 3,707,810.20 and 1,479,716.70 is: 2,041,916.55
Step by Step Solution
- Step 1: Write the proportion equation
2,686,940.70 : 3,707,810.20 = 1,479,716.70 : x - Step 2: Convert to fraction form
2,686,940.70/3,707,810.20 = 1,479,716.70/x - Step 3: Cross multiply
2,686,940.70x = 3,707,810.20 × 1,479,716.70 - Step 4: Simplify right side
2,686,940.70x = 5,486,508,673,370.34 - Step 5: Solve for x
x = 5,486,508,673,370.34/2,686,940.70 - Step 6: Final answer
x = 2,041,916.55
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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.