Finding the Fourth Proportional to 2,112,367.13, 2,915,067.42 and 1,145,497.17
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Solution
The fourth proportional to 2,112,367.13, 2,915,067.42 and 1,145,497.17 is: 1,580,786.52
Step by Step Solution
- Step 1: Write the proportion equation
2,112,367.13 : 2,915,067.42 = 1,145,497.17 : x - Step 2: Convert to fraction form
2,112,367.13/2,915,067.42 = 1,145,497.17/x - Step 3: Cross multiply
2,112,367.13x = 2,915,067.42 × 1,145,497.17 - Step 4: Simplify right side
2,112,367.13x = 3,339,201,479,969.20 - Step 5: Solve for x
x = 3,339,201,479,969.20/2,112,367.13 - Step 6: Final answer
x = 1,580,786.52
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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.