Finding the Fourth Proportional to 3,846,911.36, 5,762,784.09 and 3,128,064.44
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Solution
The fourth proportional to 3,846,911.36, 5,762,784.09 and 3,128,064.44 is: 4,685,930.69
Step by Step Solution
- Step 1: Write the proportion equation
3,846,911.36 : 5,762,784.09 = 3,128,064.44 : x - Step 2: Convert to fraction form
3,846,911.36/5,762,784.09 = 3,128,064.44/x - Step 3: Cross multiply
3,846,911.36x = 5,762,784.09 × 3,128,064.44 - Step 4: Simplify right side
3,846,911.36x = 18,026,359,987,326.76 - Step 5: Solve for x
x = 18,026,359,987,326.76/3,846,911.36 - Step 6: Final answer
x = 4,685,930.69
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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.