Finding the Fourth Proportional to 3,886,837.11, 5,831,314.94 and 1,191,102.63
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Solution
The fourth proportional to 3,886,837.11, 5,831,314.94 and 1,191,102.63 is: 1,786,978.55
Step by Step Solution
- Step 1: Write the proportion equation
3,886,837.11 : 5,831,314.94 = 1,191,102.63 : x - Step 2: Convert to fraction form
3,886,837.11/5,831,314.94 = 1,191,102.63/x - Step 3: Cross multiply
3,886,837.11x = 5,831,314.94 × 1,191,102.63 - Step 4: Simplify right side
3,886,837.11x = 6,945,694,555,436.78 - Step 5: Solve for x
x = 6,945,694,555,436.78/3,886,837.11 - Step 6: Final answer
x = 1,786,978.55
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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.