Finding the Fourth Proportional to 4,485,476.20, 6,729,244.62 and 1,290,628.84
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Solution
The fourth proportional to 4,485,476.20, 6,729,244.62 and 1,290,628.84 is: 1,936,239.72
Step by Step Solution
- Step 1: Write the proportion equation
4,485,476.20 : 6,729,244.62 = 1,290,628.84 : x - Step 2: Convert to fraction form
4,485,476.20/6,729,244.62 = 1,290,628.84/x - Step 3: Cross multiply
4,485,476.20x = 6,729,244.62 × 1,290,628.84 - Step 4: Simplify right side
4,485,476.20x = 8,684,957,177,986.84 - Step 5: Solve for x
x = 8,684,957,177,986.84/4,485,476.20 - Step 6: Final answer
x = 1,936,239.72
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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.