Finding the Fourth Proportional to 2,751,890.64, 4,127,690.16 and 858,415.20
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Solution
The fourth proportional to 2,751,890.64, 4,127,690.16 and 858,415.20 is: 1,287,577.32
Step by Step Solution
- Step 1: Write the proportion equation
2,751,890.64 : 4,127,690.16 = 858,415.20 : x - Step 2: Convert to fraction form
2,751,890.64/4,127,690.16 = 858,415.20/x - Step 3: Cross multiply
2,751,890.64x = 4,127,690.16 × 858,415.20 - Step 4: Simplify right side
2,751,890.64x = 3,543,271,974,234.43 - Step 5: Solve for x
x = 3,543,271,974,234.43/2,751,890.64 - Step 6: Final answer
x = 1,287,577.32
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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.