Finding the Fourth Proportional to 2,072,378.80, 3,108,568.20 and 1,230,497.20
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Solution
The fourth proportional to 2,072,378.80, 3,108,568.20 and 1,230,497.20 is: 1,845,745.80
Step by Step Solution
- Step 1: Write the proportion equation
2,072,378.80 : 3,108,568.20 = 1,230,497.20 : x - Step 2: Convert to fraction form
2,072,378.80/3,108,568.20 = 1,230,497.20/x - Step 3: Cross multiply
2,072,378.80x = 3,108,568.20 × 1,230,497.20 - Step 4: Simplify right side
2,072,378.80x = 3,825,084,466,109.04 - Step 5: Solve for x
x = 3,825,084,466,109.04/2,072,378.80 - Step 6: Final answer
x = 1,845,745.80
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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.