Finding the Fourth Proportional to 1,639,838.39, 2,263,078.34 and 904,789.07
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Solution
The fourth proportional to 1,639,838.39, 2,263,078.34 and 904,789.07 is: 1,248,664.84
Step by Step Solution
- Step 1: Write the proportion equation
1,639,838.39 : 2,263,078.34 = 904,789.07 : x - Step 2: Convert to fraction form
1,639,838.39/2,263,078.34 = 904,789.07/x - Step 3: Cross multiply
1,639,838.39x = 2,263,078.34 × 904,789.07 - Step 4: Simplify right side
1,639,838.39x = 2,047,608,542,625.91 - Step 5: Solve for x
x = 2,047,608,542,625.91/1,639,838.39 - Step 6: Final answer
x = 1,248,664.84
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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.