Finding the Fourth Proportional to 2,637,390.92, 3,639,678.74 and 1,491,448.28
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Solution
The fourth proportional to 2,637,390.92, 3,639,678.74 and 1,491,448.28 is: 2,058,243.45
Step by Step Solution
- Step 1: Write the proportion equation
2,637,390.92 : 3,639,678.74 = 1,491,448.28 : x - Step 2: Convert to fraction form
2,637,390.92/3,639,678.74 = 1,491,448.28/x - Step 3: Cross multiply
2,637,390.92x = 3,639,678.74 × 1,491,448.28 - Step 4: Simplify right side
2,637,390.92x = 5,428,392,596,525.57 - Step 5: Solve for x
x = 5,428,392,596,525.57/2,637,390.92 - Step 6: Final answer
x = 2,058,243.45
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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.