Finding the Fourth Proportional to 2,128,433.09, 2,937,299.90 and 1,161,625.37
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Solution
The fourth proportional to 2,128,433.09, 2,937,299.90 and 1,161,625.37 is: 1,603,076.97
Step by Step Solution
- Step 1: Write the proportion equation
2,128,433.09 : 2,937,299.90 = 1,161,625.37 : x - Step 2: Convert to fraction form
2,128,433.09/2,937,299.90 = 1,161,625.37/x - Step 3: Cross multiply
2,128,433.09x = 2,937,299.90 × 1,161,625.37 - Step 4: Simplify right side
2,128,433.09x = 3,412,042,062,643.84 - Step 5: Solve for x
x = 3,412,042,062,643.84/2,128,433.09 - Step 6: Final answer
x = 1,603,076.97
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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.