Finding the Fourth Proportional to 2,312,290.95, 3,190,821.76 and 1,279,736.26
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Solution
The fourth proportional to 2,312,290.95, 3,190,821.76 and 1,279,736.26 is: 1,765,958.70
Step by Step Solution
- Step 1: Write the proportion equation
2,312,290.95 : 3,190,821.76 = 1,279,736.26 : x - Step 2: Convert to fraction form
2,312,290.95/3,190,821.76 = 1,279,736.26/x - Step 3: Cross multiply
2,312,290.95x = 3,190,821.76 × 1,279,736.26 - Step 4: Simplify right side
2,312,290.95x = 4,083,410,317,040.01 - Step 5: Solve for x
x = 4,083,410,317,040.01/2,312,290.95 - Step 6: Final answer
x = 1,765,958.70
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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.