Finding the Fourth Proportional to 2,305,286.40, 3,181,298.88 and 1,286,690.88
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Solution
The fourth proportional to 2,305,286.40, 3,181,298.88 and 1,286,690.88 is: 1,775,635.45
Step by Step Solution
- Step 1: Write the proportion equation
2,305,286.40 : 3,181,298.88 = 1,286,690.88 : x - Step 2: Convert to fraction form
2,305,286.40/3,181,298.88 = 1,286,690.88/x - Step 3: Cross multiply
2,305,286.40x = 3,181,298.88 × 1,286,690.88 - Step 4: Simplify right side
2,305,286.40x = 4,093,348,255,450.21 - Step 5: Solve for x
x = 4,093,348,255,450.21/2,305,286.40 - Step 6: Final answer
x = 1,775,635.45
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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.