Finding the Fourth Proportional to 2,399,901.36, 3,311,864.19 and 1,312,173.69
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Solution
The fourth proportional to 2,399,901.36, 3,311,864.19 and 1,312,173.69 is: 1,810,799.86
Step by Step Solution
- Step 1: Write the proportion equation
2,399,901.36 : 3,311,864.19 = 1,312,173.69 : x - Step 2: Convert to fraction form
2,399,901.36/3,311,864.19 = 1,312,173.69/x - Step 3: Cross multiply
2,399,901.36x = 3,311,864.19 × 1,312,173.69 - Step 4: Simplify right side
2,399,901.36x = 4,345,741,054,971.16 - Step 5: Solve for x
x = 4,345,741,054,971.16/2,399,901.36 - Step 6: Final answer
x = 1,810,799.86
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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.