Finding the Fourth Proportional to 2,128,820.40, 2,937,664.26 and 1,161,942.84
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Solution
The fourth proportional to 2,128,820.40, 2,937,664.26 and 1,161,942.84 is: 1,603,422.23
Step by Step Solution
- Step 1: Write the proportion equation
2,128,820.40 : 2,937,664.26 = 1,161,942.84 : x - Step 2: Convert to fraction form
2,128,820.40/2,937,664.26 = 1,161,942.84/x - Step 3: Cross multiply
2,128,820.40x = 2,937,664.26 × 1,161,942.84 - Step 4: Simplify right side
2,128,820.40x = 3,413,397,953,230.90 - Step 5: Solve for x
x = 3,413,397,953,230.90/2,128,820.40 - Step 6: Final answer
x = 1,603,422.23
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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.