Finding the Fourth Proportional to 3,058,455.78, 4,220,937.88 and 1,682,042.02
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Solution
The fourth proportional to 3,058,455.78, 4,220,937.88 and 1,682,042.02 is: 2,321,365.87
Step by Step Solution
- Step 1: Write the proportion equation
3,058,455.78 : 4,220,937.88 = 1,682,042.02 : x - Step 2: Convert to fraction form
3,058,455.78/4,220,937.88 = 1,682,042.02/x - Step 3: Cross multiply
3,058,455.78x = 4,220,937.88 × 1,682,042.02 - Step 4: Simplify right side
3,058,455.78x = 7,099,794,863,212.27 - Step 5: Solve for x
x = 7,099,794,863,212.27/3,058,455.78 - Step 6: Final answer
x = 2,321,365.87
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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.