Finding the Fourth Proportional to 1,728,858.87, 2,586,865.70 and 1,086,153.57
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Solution
The fourth proportional to 1,728,858.87, 2,586,865.70 and 1,086,153.57 is: 1,625,195.36
Step by Step Solution
- Step 1: Write the proportion equation
1,728,858.87 : 2,586,865.70 = 1,086,153.57 : x - Step 2: Convert to fraction form
1,728,858.87/2,586,865.70 = 1,086,153.57/x - Step 3: Cross multiply
1,728,858.87x = 2,586,865.70 × 1,086,153.57 - Step 4: Simplify right side
1,728,858.87x = 2,809,733,415,165.55 - Step 5: Solve for x
x = 2,809,733,415,165.55/1,728,858.87 - Step 6: Final answer
x = 1,625,195.36
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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.