Finding the Fourth Proportional to 2,128,076.36, 2,936,816.16 and 1,161,259.68
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Solution
The fourth proportional to 2,128,076.36, 2,936,816.16 and 1,161,259.68 is: 1,602,576.98
Step by Step Solution
- Step 1: Write the proportion equation
2,128,076.36 : 2,936,816.16 = 1,161,259.68 : x - Step 2: Convert to fraction form
2,128,076.36/2,936,816.16 = 1,161,259.68/x - Step 3: Cross multiply
2,128,076.36x = 2,936,816.16 × 1,161,259.68 - Step 4: Simplify right side
2,128,076.36x = 3,410,406,194,180.43 - Step 5: Solve for x
x = 3,410,406,194,180.43/2,128,076.36 - Step 6: Final answer
x = 1,602,576.98
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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.