Finding the Fourth Proportional to 1,413,856.36, 2,120,981.37 and 454,340.62
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Solution
The fourth proportional to 1,413,856.36, 2,120,981.37 and 454,340.62 is: 681,574.18
Step by Step Solution
- Step 1: Write the proportion equation
1,413,856.36 : 2,120,981.37 = 454,340.62 : x - Step 2: Convert to fraction form
1,413,856.36/2,120,981.37 = 454,340.62/x - Step 3: Cross multiply
1,413,856.36x = 2,120,981.37 × 454,340.62 - Step 4: Simplify right side
1,413,856.36x = 963,647,990,654.25 - Step 5: Solve for x
x = 963,647,990,654.25/1,413,856.36 - Step 6: Final answer
x = 681,574.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.