Finding the Fourth Proportional to 1,603,395.74, 2,212,717.97 and 878,243.51
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Solution
The fourth proportional to 1,603,395.74, 2,212,717.97 and 878,243.51 is: 1,211,993.49
Step by Step Solution
- Step 1: Write the proportion equation
1,603,395.74 : 2,212,717.97 = 878,243.51 : x - Step 2: Convert to fraction form
1,603,395.74/2,212,717.97 = 878,243.51/x - Step 3: Cross multiply
1,603,395.74x = 2,212,717.97 × 878,243.51 - Step 4: Simplify right side
1,603,395.74x = 1,943,305,196,612.88 - Step 5: Solve for x
x = 1,943,305,196,612.88/1,603,395.74 - Step 6: Final answer
x = 1,211,993.49
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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.