Finding the Fourth Proportional to 2,128,201.53, 2,936,980.43 and 1,161,394.12
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Solution
The fourth proportional to 2,128,201.53, 2,936,980.43 and 1,161,394.12 is: 1,602,757.89
Step by Step Solution
- Step 1: Write the proportion equation
2,128,201.53 : 2,936,980.43 = 1,161,394.12 : x - Step 2: Convert to fraction form
2,128,201.53/2,936,980.43 = 1,161,394.12/x - Step 3: Cross multiply
2,128,201.53x = 2,936,980.43 × 1,161,394.12 - Step 4: Simplify right side
2,128,201.53x = 3,410,991,801,957.07 - Step 5: Solve for x
x = 3,410,991,801,957.07/2,128,201.53 - Step 6: Final answer
x = 1,602,757.89
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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.