Finding the Fourth Proportional to 2,378,843.21, 3,282,806.71 and 1,291,114.66
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Solution
The fourth proportional to 2,378,843.21, 3,282,806.71 and 1,291,114.66 is: 1,781,739.90
Step by Step Solution
- Step 1: Write the proportion equation
2,378,843.21 : 3,282,806.71 = 1,291,114.66 : x - Step 2: Convert to fraction form
2,378,843.21/3,282,806.71 = 1,291,114.66/x - Step 3: Cross multiply
2,378,843.21x = 3,282,806.71 × 1,291,114.66 - Step 4: Simplify right side
2,378,843.21x = 4,238,479,869,227.37 - Step 5: Solve for x
x = 4,238,479,869,227.37/2,378,843.21 - Step 6: Final answer
x = 1,781,739.90
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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.