Finding the Fourth Proportional to 1,936,743.94, 2,673,269.72 and 1,292,163.05
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Solution
The fourth proportional to 1,936,743.94, 2,673,269.72 and 1,292,163.05 is: 1,783,560.69
Step by Step Solution
- Step 1: Write the proportion equation
1,936,743.94 : 2,673,269.72 = 1,292,163.05 : x - Step 2: Convert to fraction form
1,936,743.94/2,673,269.72 = 1,292,163.05/x - Step 3: Cross multiply
1,936,743.94x = 2,673,269.72 × 1,292,163.05 - Step 4: Simplify right side
1,936,743.94x = 3,454,300,355,090.20 - Step 5: Solve for x
x = 3,454,300,355,090.20/1,936,743.94 - Step 6: Final answer
x = 1,783,560.69
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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.