Finding the Fourth Proportional to 1,322,790.87, 1,825,782.08 and 813,198
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Solution
The fourth proportional to 1,322,790.87, 1,825,782.08 and 813,198 is: 1,122,416.53
Step by Step Solution
- Step 1: Write the proportion equation
1,322,790.87 : 1,825,782.08 = 813,198 : x - Step 2: Convert to fraction form
1,322,790.87/1,825,782.08 = 813,198/x - Step 3: Cross multiply
1,322,790.87x = 1,825,782.08 × 813,198 - Step 4: Simplify right side
1,322,790.87x = 1,484,722,331,825.85 - Step 5: Solve for x
x = 1,484,722,331,825.85/1,322,790.87 - Step 6: Final answer
x = 1,122,416.53
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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.