Finding the Fourth Proportional to 2,128,224.62, 2,936,925.79 and 1,161,371.36
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Solution
The fourth proportional to 2,128,224.62, 2,936,925.79 and 1,161,371.36 is: 1,602,679.28
Step by Step Solution
- Step 1: Write the proportion equation
2,128,224.62 : 2,936,925.79 = 1,161,371.36 : x - Step 2: Convert to fraction form
2,128,224.62/2,936,925.79 = 1,161,371.36/x - Step 3: Cross multiply
2,128,224.62x = 2,936,925.79 × 1,161,371.36 - Step 4: Simplify right side
2,128,224.62x = 3,410,861,503,390.26 - Step 5: Solve for x
x = 3,410,861,503,390.26/2,128,224.62 - Step 6: Final answer
x = 1,602,679.28
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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.