Finding the Fourth Proportional to 3,845,694.74, 5,306,469.21 and 2,213,786.79
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Solution
The fourth proportional to 3,845,694.74, 5,306,469.21 and 2,213,786.79 is: 3,054,686.41
Step by Step Solution
- Step 1: Write the proportion equation
3,845,694.74 : 5,306,469.21 = 2,213,786.79 : x - Step 2: Convert to fraction form
3,845,694.74/5,306,469.21 = 2,213,786.79/x - Step 3: Cross multiply
3,845,694.74x = 5,306,469.21 × 2,213,786.79 - Step 4: Simplify right side
3,845,694.74x = 11,747,391,438,639.74 - Step 5: Solve for x
x = 11,747,391,438,639.74/3,845,694.74 - Step 6: Final answer
x = 3,054,686.41
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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.