Finding the Fourth Proportional to 2,197,975.40, 3,297,351.90 and 778,855.40
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Solution
The fourth proportional to 2,197,975.40, 3,297,351.90 and 778,855.40 is: 1,168,420.87
Step by Step Solution
- Step 1: Write the proportion equation
2,197,975.40 : 3,297,351.90 = 778,855.40 : x - Step 2: Convert to fraction form
2,197,975.40/3,297,351.90 = 778,855.40/x - Step 3: Cross multiply
2,197,975.40x = 3,297,351.90 × 778,855.40 - Step 4: Simplify right side
2,197,975.40x = 2,568,160,333,015.26 - Step 5: Solve for x
x = 2,568,160,333,015.26/2,197,975.40 - Step 6: Final answer
x = 1,168,420.87
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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.