Finding the Fourth Proportional to 1,969,175.78, 2,717,395.39 and 1,086,159.92
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Solution
The fourth proportional to 1,969,175.78, 2,717,395.39 and 1,086,159.92 is: 1,498,863.63
Step by Step Solution
- Step 1: Write the proportion equation
1,969,175.78 : 2,717,395.39 = 1,086,159.92 : x - Step 2: Convert to fraction form
1,969,175.78/2,717,395.39 = 1,086,159.92/x - Step 3: Cross multiply
1,969,175.78x = 2,717,395.39 × 1,086,159.92 - Step 4: Simplify right side
1,969,175.78x = 2,951,525,953,979.97 - Step 5: Solve for x
x = 2,951,525,953,979.97/1,969,175.78 - Step 6: Final answer
x = 1,498,863.63
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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.