Finding the Fourth Proportional to 4,378,296.40, 6,556,385.40 and 2,874,245.20
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Solution
The fourth proportional to 4,378,296.40, 6,556,385.40 and 2,874,245.20 is: 4,304,107.70
Step by Step Solution
- Step 1: Write the proportion equation
4,378,296.40 : 6,556,385.40 = 2,874,245.20 : x - Step 2: Convert to fraction form
4,378,296.40/6,556,385.40 = 2,874,245.20/x - Step 3: Cross multiply
4,378,296.40x = 6,556,385.40 × 2,874,245.20 - Step 4: Simplify right side
4,378,296.40x = 18,844,659,265,300.08 - Step 5: Solve for x
x = 18,844,659,265,300.08/4,378,296.40 - Step 6: Final answer
x = 4,304,107.70
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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.