Finding the Fourth Proportional to 1,603,639.86, 2,213,025.62 and 878,471.66
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Solution
The fourth proportional to 1,603,639.86, 2,213,025.62 and 878,471.66 is: 1,212,292.31
Step by Step Solution
- Step 1: Write the proportion equation
1,603,639.86 : 2,213,025.62 = 878,471.66 : x - Step 2: Convert to fraction form
1,603,639.86/2,213,025.62 = 878,471.66/x - Step 3: Cross multiply
1,603,639.86x = 2,213,025.62 × 878,471.66 - Step 4: Simplify right side
1,603,639.86x = 1,944,080,274,566.44 - Step 5: Solve for x
x = 1,944,080,274,566.44/1,603,639.86 - Step 6: Final answer
x = 1,212,292.31
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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.