Finding the Fourth Proportional to 4,021,121.20, 6,032,556.60 and 1,324,987.60
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Solution
The fourth proportional to 4,021,121.20, 6,032,556.60 and 1,324,987.60 is: 1,987,769.65
Step by Step Solution
- Step 1: Write the proportion equation
4,021,121.20 : 6,032,556.60 = 1,324,987.60 : x - Step 2: Convert to fraction form
4,021,121.20/6,032,556.60 = 1,324,987.60/x - Step 3: Cross multiply
4,021,121.20x = 6,032,556.60 × 1,324,987.60 - Step 4: Simplify right side
4,021,121.20x = 7,993,062,691,298.16 - Step 5: Solve for x
x = 7,993,062,691,298.16/4,021,121.20 - Step 6: Final answer
x = 1,987,769.65
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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.