Finding the Fourth Proportional to 1,325,297.36, 1,987,945.73 and 378,668.09
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Solution
The fourth proportional to 1,325,297.36, 1,987,945.73 and 378,668.09 is: 568,002.05
Step by Step Solution
- Step 1: Write the proportion equation
1,325,297.36 : 1,987,945.73 = 378,668.09 : x - Step 2: Convert to fraction form
1,325,297.36/1,987,945.73 = 378,668.09/x - Step 3: Cross multiply
1,325,297.36x = 1,987,945.73 × 378,668.09 - Step 4: Simplify right side
1,325,297.36x = 752,771,612,602.76 - Step 5: Solve for x
x = 752,771,612,602.76/1,325,297.36 - Step 6: Final answer
x = 568,002.05
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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.