Finding the Fourth Proportional to 2,619,361.51, 3,929,043.30 and 1,178,361.75
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Solution
The fourth proportional to 2,619,361.51, 3,929,043.30 and 1,178,361.75 is: 1,767,543.09
Step by Step Solution
- Step 1: Write the proportion equation
2,619,361.51 : 3,929,043.30 = 1,178,361.75 : x - Step 2: Convert to fraction form
2,619,361.51/3,929,043.30 = 1,178,361.75/x - Step 3: Cross multiply
2,619,361.51x = 3,929,043.30 × 1,178,361.75 - Step 4: Simplify right side
2,619,361.51x = 4,629,834,338,813.77 - Step 5: Solve for x
x = 4,629,834,338,813.77/2,619,361.51 - Step 6: Final answer
x = 1,767,543.09
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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.