Finding the Fourth Proportional to 1,987,321.96, 2,742,514.68 and 1,081,910.44
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Solution
The fourth proportional to 1,987,321.96, 2,742,514.68 and 1,081,910.44 is: 1,493,042.06
Step by Step Solution
- Step 1: Write the proportion equation
1,987,321.96 : 2,742,514.68 = 1,081,910.44 : x - Step 2: Convert to fraction form
1,987,321.96/2,742,514.68 = 1,081,910.44/x - Step 3: Cross multiply
1,987,321.96x = 2,742,514.68 × 1,081,910.44 - Step 4: Simplify right side
1,987,321.96x = 2,967,155,264,145.26 - Step 5: Solve for x
x = 2,967,155,264,145.26/1,987,321.96 - Step 6: Final answer
x = 1,493,042.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.