Finding the Fourth Proportional to 2,378,843.09, 3,282,806.53 and 1,291,114.54
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Solution
The fourth proportional to 2,378,843.09, 3,282,806.53 and 1,291,114.54 is: 1,781,739.73
Step by Step Solution
- Step 1: Write the proportion equation
2,378,843.09 : 3,282,806.53 = 1,291,114.54 : x - Step 2: Convert to fraction form
2,378,843.09/3,282,806.53 = 1,291,114.54/x - Step 3: Cross multiply
2,378,843.09x = 3,282,806.53 × 1,291,114.54 - Step 4: Simplify right side
2,378,843.09x = 4,238,479,242,889.95 - Step 5: Solve for x
x = 4,238,479,242,889.95/2,378,843.09 - Step 6: Final answer
x = 1,781,739.73
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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.