Finding the Fourth Proportional to 3,215,454.13, 4,437,163.75 and 1,908,762.03
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Solution
The fourth proportional to 3,215,454.13, 4,437,163.75 and 1,908,762.03 is: 2,633,994.87
Step by Step Solution
- Step 1: Write the proportion equation
3,215,454.13 : 4,437,163.75 = 1,908,762.03 : x - Step 2: Convert to fraction form
3,215,454.13/4,437,163.75 = 1,908,762.03/x - Step 3: Cross multiply
3,215,454.13x = 4,437,163.75 × 1,908,762.03 - Step 4: Simplify right side
3,215,454.13x = 8,469,489,686,892.41 - Step 5: Solve for x
x = 8,469,489,686,892.41/3,215,454.13 - Step 6: Final answer
x = 2,633,994.87
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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.