Finding the Fourth Proportional to 3,939,997.68, 5,909,997.60 and 948,181.68
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Solution
The fourth proportional to 3,939,997.68, 5,909,997.60 and 948,181.68 is: 1,422,272.78
Step by Step Solution
- Step 1: Write the proportion equation
3,939,997.68 : 5,909,997.60 = 948,181.68 : x - Step 2: Convert to fraction form
3,939,997.68/5,909,997.60 = 948,181.68/x - Step 3: Cross multiply
3,939,997.68x = 5,909,997.60 × 948,181.68 - Step 4: Simplify right side
3,939,997.68x = 5,603,751,453,163.97 - Step 5: Solve for x
x = 5,603,751,453,163.97/3,939,997.68 - Step 6: Final answer
x = 1,422,272.78
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1.5x scale
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.