Finding the Fourth Proportional to 1,821,897.36, 2,514,189.78 and 1,006,080.75
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Solution
The fourth proportional to 1,821,897.36, 2,514,189.78 and 1,006,080.75 is: 1,388,375.65
Step by Step Solution
- Step 1: Write the proportion equation
1,821,897.36 : 2,514,189.78 = 1,006,080.75 : x - Step 2: Convert to fraction form
1,821,897.36/2,514,189.78 = 1,006,080.75/x - Step 3: Cross multiply
1,821,897.36x = 2,514,189.78 × 1,006,080.75 - Step 4: Simplify right side
1,821,897.36x = 2,529,477,939,504.74 - Step 5: Solve for x
x = 2,529,477,939,504.74/1,821,897.36 - Step 6: Final answer
x = 1,388,375.65
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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.