Finding the Fourth Proportional to 3,622,919.07, 4,999,679.66 and 1,991,477.28
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Solution
The fourth proportional to 3,622,919.07, 4,999,679.66 and 1,991,477.28 is: 2,748,266.87
Step by Step Solution
- Step 1: Write the proportion equation
3,622,919.07 : 4,999,679.66 = 1,991,477.28 : x - Step 2: Convert to fraction form
3,622,919.07/4,999,679.66 = 1,991,477.28/x - Step 3: Cross multiply
3,622,919.07x = 4,999,679.66 × 1,991,477.28 - Step 4: Simplify right side
3,622,919.07x = 9,956,748,450,168.13 - Step 5: Solve for x
x = 9,956,748,450,168.13/3,622,919.07 - Step 6: Final answer
x = 2,748,266.87
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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.