Finding the Fourth Proportional to 2,230,596.40, 3,078,230.70 and 1,263,905.68
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Solution
The fourth proportional to 2,230,596.40, 3,078,230.70 and 1,263,905.68 is: 1,744,194.18
Step by Step Solution
- Step 1: Write the proportion equation
2,230,596.40 : 3,078,230.70 = 1,263,905.68 : x - Step 2: Convert to fraction form
2,230,596.40/3,078,230.70 = 1,263,905.68/x - Step 3: Cross multiply
2,230,596.40x = 3,078,230.70 × 1,263,905.68 - Step 4: Simplify right side
2,230,596.40x = 3,890,593,266,080.38 - Step 5: Solve for x
x = 3,890,593,266,080.38/2,230,596.40 - Step 6: Final answer
x = 1,744,194.18
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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.