Finding the Fourth Proportional to 1,679,619.60, 2,519,863.76 and 481,629.60
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Solution
The fourth proportional to 1,679,619.60, 2,519,863.76 and 481,629.60 is: 722,568.95
Step by Step Solution
- Step 1: Write the proportion equation
1,679,619.60 : 2,519,863.76 = 481,629.60 : x - Step 2: Convert to fraction form
1,679,619.60/2,519,863.76 = 481,629.60/x - Step 3: Cross multiply
1,679,619.60x = 2,519,863.76 × 481,629.60 - Step 4: Simplify right side
1,679,619.60x = 1,213,640,974,783.30 - Step 5: Solve for x
x = 1,213,640,974,783.30/1,679,619.60 - Step 6: Final answer
x = 722,568.95
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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.