Finding the Fourth Proportional to 3,878,619.36, 5,815,982.58 and 2,259,911.31
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Solution
The fourth proportional to 3,878,619.36, 5,815,982.58 and 2,259,911.31 is: 3,388,732.84
Step by Step Solution
- Step 1: Write the proportion equation
3,878,619.36 : 5,815,982.58 = 2,259,911.31 : x - Step 2: Convert to fraction form
3,878,619.36/5,815,982.58 = 2,259,911.31/x - Step 3: Cross multiply
3,878,619.36x = 5,815,982.58 × 2,259,911.31 - Step 4: Simplify right side
3,878,619.36x = 13,143,604,811,304.98 - Step 5: Solve for x
x = 13,143,604,811,304.98/3,878,619.36 - Step 6: Final answer
x = 3,388,732.84
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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.