Finding the Fourth Proportional to 2,985,629.60, 4,479,027.60 and 1,188,207.20
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Solution
The fourth proportional to 2,985,629.60, 4,479,027.60 and 1,188,207.20 is: 1,782,542.90
Step by Step Solution
- Step 1: Write the proportion equation
2,985,629.60 : 4,479,027.60 = 1,188,207.20 : x - Step 2: Convert to fraction form
2,985,629.60/4,479,027.60 = 1,188,207.20/x - Step 3: Cross multiply
2,985,629.60x = 4,479,027.60 × 1,188,207.20 - Step 4: Simplify right side
2,985,629.60x = 5,322,012,843,318.72 - Step 5: Solve for x
x = 5,322,012,843,318.72/2,985,629.60 - Step 6: Final answer
x = 1,782,542.90
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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.