Finding the Fourth Proportional to 1,603,889.22, 2,213,367.08 and 878,764.40
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Solution
The fourth proportional to 1,603,889.22, 2,213,367.08 and 878,764.40 is: 1,212,694.84
Step by Step Solution
- Step 1: Write the proportion equation
1,603,889.22 : 2,213,367.08 = 878,764.40 : x - Step 2: Convert to fraction form
1,603,889.22/2,213,367.08 = 878,764.40/x - Step 3: Cross multiply
1,603,889.22x = 2,213,367.08 × 878,764.40 - Step 4: Simplify right side
1,603,889.22x = 1,945,028,178,575.30 - Step 5: Solve for x
x = 1,945,028,178,575.30/1,603,889.22 - Step 6: Final answer
x = 1,212,694.84
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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.