Finding the Fourth Proportional to 691,324.24, 1,040,721.04 and 621,804.84
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Solution
The fourth proportional to 691,324.24, 1,040,721.04 and 621,804.84 is: 936,066.38
Step by Step Solution
- Step 1: Write the proportion equation
691,324.24 : 1,040,721.04 = 621,804.84 : x - Step 2: Convert to fraction form
691,324.24/1,040,721.04 = 621,804.84/x - Step 3: Cross multiply
691,324.24x = 1,040,721.04 × 621,804.84 - Step 4: Simplify right side
691,324.24x = 647,125,379,761.83 - Step 5: Solve for x
x = 647,125,379,761.83/691,324.24 - Step 6: Final answer
x = 936,066.38
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.