Finding the Fourth Proportional to 3,719,979.45, 5,134,131.90 and 2,270,517.17
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Solution
The fourth proportional to 3,719,979.45, 5,134,131.90 and 2,270,517.17 is: 3,133,655.65
Step by Step Solution
- Step 1: Write the proportion equation
3,719,979.45 : 5,134,131.90 = 2,270,517.17 : x - Step 2: Convert to fraction form
3,719,979.45/5,134,131.90 = 2,270,517.17/x - Step 3: Cross multiply
3,719,979.45x = 5,134,131.90 × 2,270,517.17 - Step 4: Simplify right side
3,719,979.45x = 11,657,134,606,324.06 - Step 5: Solve for x
x = 11,657,134,606,324.06/3,719,979.45 - Step 6: Final answer
x = 3,133,655.65
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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.