Finding the Fourth Proportional to 1,388,889.26, 2,079,183.12 and 840,120.93
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Solution
The fourth proportional to 1,388,889.26, 2,079,183.12 and 840,120.93 is: 1,257,670.65
Step by Step Solution
- Step 1: Write the proportion equation
1,388,889.26 : 2,079,183.12 = 840,120.93 : x - Step 2: Convert to fraction form
1,388,889.26/2,079,183.12 = 840,120.93/x - Step 3: Cross multiply
1,388,889.26x = 2,079,183.12 × 840,120.93 - Step 4: Simplify right side
1,388,889.26x = 1,746,765,256,414.70 - Step 5: Solve for x
x = 1,746,765,256,414.70/1,388,889.26 - Step 6: Final answer
x = 1,257,670.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.