Finding the Fourth Proportional to 3,215,987.97, 4,438,072.13 and 1,765,777.34
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Solution
The fourth proportional to 3,215,987.97, 4,438,072.13 and 1,765,777.34 is: 2,436,777.51
Step by Step Solution
- Step 1: Write the proportion equation
3,215,987.97 : 4,438,072.13 = 1,765,777.34 : x - Step 2: Convert to fraction form
3,215,987.97/4,438,072.13 = 1,765,777.34/x - Step 3: Cross multiply
3,215,987.97x = 4,438,072.13 × 1,765,777.34 - Step 4: Simplify right side
3,215,987.97x = 7,836,647,169,420.29 - Step 5: Solve for x
x = 7,836,647,169,420.29/3,215,987.97 - Step 6: Final answer
x = 2,436,777.51
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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.