Finding the Fourth Proportional to 1,377,138.70, 2,065,708.05 and 1,324,650.70
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Solution
The fourth proportional to 1,377,138.70, 2,065,708.05 and 1,324,650.70 is: 1,986,976.05
Step by Step Solution
- Step 1: Write the proportion equation
1,377,138.70 : 2,065,708.05 = 1,324,650.70 : x - Step 2: Convert to fraction form
1,377,138.70/2,065,708.05 = 1,324,650.70/x - Step 3: Cross multiply
1,377,138.70x = 2,065,708.05 × 1,324,650.70 - Step 4: Simplify right side
1,377,138.70x = 2,736,341,614,428.13 - Step 5: Solve for x
x = 2,736,341,614,428.13/1,377,138.70 - Step 6: Final answer
x = 1,986,976.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.