Finding the Fourth Proportional to 3,121,378, 4,307,851.74 and 1,763,338.48
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Solution
The fourth proportional to 3,121,378, 4,307,851.74 and 1,763,338.48 is: 2,433,604.88
Step by Step Solution
- Step 1: Write the proportion equation
3,121,378 : 4,307,851.74 = 1,763,338.48 : x - Step 2: Convert to fraction form
3,121,378/4,307,851.74 = 1,763,338.48/x - Step 3: Cross multiply
3,121,378x = 4,307,851.74 × 1,763,338.48 - Step 4: Simplify right side
3,121,378x = 7,596,200,739,276.96 - Step 5: Solve for x
x = 7,596,200,739,276.96/3,121,378 - Step 6: Final answer
x = 2,433,604.88
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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.