Finding the Fourth Proportional to 3,879,290.79, 5,819,419.26 and 1,320,309.09
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Solution
The fourth proportional to 3,879,290.79, 5,819,419.26 and 1,320,309.09 is: 1,980,628.05
Step by Step Solution
- Step 1: Write the proportion equation
3,879,290.79 : 5,819,419.26 = 1,320,309.09 : x - Step 2: Convert to fraction form
3,879,290.79/5,819,419.26 = 1,320,309.09/x - Step 3: Cross multiply
3,879,290.79x = 5,819,419.26 × 1,320,309.09 - Step 4: Simplify right side
3,879,290.79x = 7,683,432,147,499.07 - Step 5: Solve for x
x = 7,683,432,147,499.07/3,879,290.79 - Step 6: Final answer
x = 1,980,628.05
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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.