Finding the Fourth Proportional to 1,961,162.16, 2,706,258.32 and 1,101,865.60
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Solution
The fourth proportional to 1,961,162.16, 2,706,258.32 and 1,101,865.60 is: 1,520,492.80
Step by Step Solution
- Step 1: Write the proportion equation
1,961,162.16 : 2,706,258.32 = 1,101,865.60 : x - Step 2: Convert to fraction form
1,961,162.16/2,706,258.32 = 1,101,865.60/x - Step 3: Cross multiply
1,961,162.16x = 2,706,258.32 × 1,101,865.60 - Step 4: Simplify right side
1,961,162.16x = 2,981,932,947,521.79 - Step 5: Solve for x
x = 2,981,932,947,521.79/1,961,162.16 - Step 6: Final answer
x = 1,520,492.80
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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.