Finding the Fourth Proportional to 2,128,333.18, 2,937,195.57 and 1,198,361.25
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Solution
The fourth proportional to 2,128,333.18, 2,937,195.57 and 1,198,361.25 is: 1,653,792.45
Step by Step Solution
- Step 1: Write the proportion equation
2,128,333.18 : 2,937,195.57 = 1,198,361.25 : x - Step 2: Convert to fraction form
2,128,333.18/2,937,195.57 = 1,198,361.25/x - Step 3: Cross multiply
2,128,333.18x = 2,937,195.57 × 1,198,361.25 - Step 4: Simplify right side
2,128,333.18x = 3,519,821,354,759.66 - Step 5: Solve for x
x = 3,519,821,354,759.66/2,128,333.18 - Step 6: Final answer
x = 1,653,792.45
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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.