Finding the Fourth Proportional to 4,428,563.80, 6,642,845.70 and 1,436,747.80
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Solution
The fourth proportional to 4,428,563.80, 6,642,845.70 and 1,436,747.80 is: 2,155,121.70
Step by Step Solution
- Step 1: Write the proportion equation
4,428,563.80 : 6,642,845.70 = 1,436,747.80 : x - Step 2: Convert to fraction form
4,428,563.80/6,642,845.70 = 1,436,747.80/x - Step 3: Cross multiply
4,428,563.80x = 6,642,845.70 × 1,436,747.80 - Step 4: Simplify right side
4,428,563.80x = 9,544,093,945,214.46 - Step 5: Solve for x
x = 9,544,093,945,214.46/4,428,563.80 - Step 6: Final answer
x = 2,155,121.70
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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.