Finding the Fourth Proportional to 1,538,201.76, 2,122,761.24 and 849,917.97
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Solution
The fourth proportional to 1,538,201.76, 2,122,761.24 and 849,917.97 is: 1,172,910.45
Step by Step Solution
- Step 1: Write the proportion equation
1,538,201.76 : 2,122,761.24 = 849,917.97 : x - Step 2: Convert to fraction form
1,538,201.76/2,122,761.24 = 849,917.97/x - Step 3: Cross multiply
1,538,201.76x = 2,122,761.24 × 849,917.97 - Step 4: Simplify right side
1,538,201.76x = 1,804,172,923,895.48 - Step 5: Solve for x
x = 1,804,172,923,895.48/1,538,201.76 - Step 6: Final answer
x = 1,172,910.45
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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.