Finding the Fourth Proportional to 1,616,718.21, 2,231,040.07 and 891,632.94
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Solution
The fourth proportional to 1,616,718.21, 2,231,040.07 and 891,632.94 is: 1,230,436.32
Step by Step Solution
- Step 1: Write the proportion equation
1,616,718.21 : 2,231,040.07 = 891,632.94 : x - Step 2: Convert to fraction form
1,616,718.21/2,231,040.07 = 891,632.94/x - Step 3: Cross multiply
1,616,718.21x = 2,231,040.07 × 891,632.94 - Step 4: Simplify right side
1,616,718.21x = 1,989,268,801,258.54 - Step 5: Solve for x
x = 1,989,268,801,258.54/1,616,718.21 - Step 6: Final answer
x = 1,230,436.32
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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.