Finding the Fourth Proportional to 1,397,842.56, 1,929,183.36 and 777,709.44
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Solution
The fourth proportional to 1,397,842.56, 1,929,183.36 and 777,709.44 is: 1,073,328.39
Step by Step Solution
- Step 1: Write the proportion equation
1,397,842.56 : 1,929,183.36 = 777,709.44 : x - Step 2: Convert to fraction form
1,397,842.56/1,929,183.36 = 777,709.44/x - Step 3: Cross multiply
1,397,842.56x = 1,929,183.36 × 777,709.44 - Step 4: Simplify right side
1,397,842.56x = 1,500,344,110,562.92 - Step 5: Solve for x
x = 1,500,344,110,562.92/1,397,842.56 - Step 6: Final answer
x = 1,073,328.39
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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.