Finding the Fourth Proportional to 4,481,785.90, 6,721,804.05 and 1,489,969.90
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Solution
The fourth proportional to 4,481,785.90, 6,721,804.05 and 1,489,969.90 is: 2,234,664.02
Step by Step Solution
- Step 1: Write the proportion equation
4,481,785.90 : 6,721,804.05 = 1,489,969.90 : x - Step 2: Convert to fraction form
4,481,785.90/6,721,804.05 = 1,489,969.90/x - Step 3: Cross multiply
4,481,785.90x = 6,721,804.05 × 1,489,969.90 - Step 4: Simplify right side
4,481,785.90x = 10,015,285,708,198.09 - Step 5: Solve for x
x = 10,015,285,708,198.09/4,481,785.90 - Step 6: Final answer
x = 2,234,664.02
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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.