Finding the Fourth Proportional to 1,319,861.44, 1,821,398.12 and 716,249.44
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Solution
The fourth proportional to 1,319,861.44, 1,821,398.12 and 716,249.44 is: 988,418.44
Step by Step Solution
- Step 1: Write the proportion equation
1,319,861.44 : 1,821,398.12 = 716,249.44 : x - Step 2: Convert to fraction form
1,319,861.44/1,821,398.12 = 716,249.44/x - Step 3: Cross multiply
1,319,861.44x = 1,821,398.12 × 716,249.44 - Step 4: Simplify right side
1,319,861.44x = 1,304,575,383,467.05 - Step 5: Solve for x
x = 1,304,575,383,467.05/1,319,861.44 - Step 6: Final answer
x = 988,418.44
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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.