Finding the Fourth Proportional to 2,309,163.51, 3,186,637.67 and 1,290,568.26
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Solution
The fourth proportional to 2,309,163.51, 3,186,637.67 and 1,290,568.26 is: 1,780,979.74
Step by Step Solution
- Step 1: Write the proportion equation
2,309,163.51 : 3,186,637.67 = 1,290,568.26 : x - Step 2: Convert to fraction form
2,309,163.51/3,186,637.67 = 1,290,568.26/x - Step 3: Cross multiply
2,309,163.51x = 3,186,637.67 × 1,290,568.26 - Step 4: Simplify right side
2,309,163.51x = 4,112,573,426,569.51 - Step 5: Solve for x
x = 4,112,573,426,569.51/2,309,163.51 - Step 6: Final answer
x = 1,780,979.74
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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.