Finding the Fourth Proportional to 1,325,220.10, 1,987,847.43 and 378,621.70
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Solution
The fourth proportional to 1,325,220.10, 1,987,847.43 and 378,621.70 is: 567,937.49
Step by Step Solution
- Step 1: Write the proportion equation
1,325,220.10 : 1,987,847.43 = 378,621.70 : x - Step 2: Convert to fraction form
1,325,220.10/1,987,847.43 = 378,621.70/x - Step 3: Cross multiply
1,325,220.10x = 1,987,847.43 × 378,621.70 - Step 4: Simplify right side
1,325,220.10x = 752,642,173,287.23 - Step 5: Solve for x
x = 752,642,173,287.23/1,325,220.10 - Step 6: Final answer
x = 567,937.49
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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.