Finding the Fourth Proportional to 4,421,410.80, 6,632,836.09 and 1,305,777.40
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Solution
The fourth proportional to 4,421,410.80, 6,632,836.09 and 1,305,777.40 is: 1,958,878.70
Step by Step Solution
- Step 1: Write the proportion equation
4,421,410.80 : 6,632,836.09 = 1,305,777.40 : x - Step 2: Convert to fraction form
4,421,410.80/6,632,836.09 = 1,305,777.40/x - Step 3: Cross multiply
4,421,410.80x = 6,632,836.09 × 1,305,777.40 - Step 4: Simplify right side
4,421,410.80x = 8,661,007,464,161.40 - Step 5: Solve for x
x = 8,661,007,464,161.40/4,421,410.80 - Step 6: Final answer
x = 1,958,878.70
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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.