Finding the Fourth Proportional to 4,751,741.50, 7,128,323.75 and 1,719,816.75
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Solution
The fourth proportional to 4,751,741.50, 7,128,323.75 and 1,719,816.75 is: 2,579,982.64
Step by Step Solution
- Step 1: Write the proportion equation
4,751,741.50 : 7,128,323.75 = 1,719,816.75 : x - Step 2: Convert to fraction form
4,751,741.50/7,128,323.75 = 1,719,816.75/x - Step 3: Cross multiply
4,751,741.50x = 7,128,323.75 × 1,719,816.75 - Step 4: Simplify right side
4,751,741.50x = 12,259,410,579,298.38 - Step 5: Solve for x
x = 12,259,410,579,298.38/4,751,741.50 - Step 6: Final answer
x = 2,579,982.64
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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.