Finding the Fourth Proportional to 2,128,261.68, 3,189,620.16 and 864,612
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Solution
The fourth proportional to 2,128,261.68, 3,189,620.16 and 864,612 is: 1,295,791.72
Step by Step Solution
- Step 1: Write the proportion equation
2,128,261.68 : 3,189,620.16 = 864,612 : x - Step 2: Convert to fraction form
2,128,261.68/3,189,620.16 = 864,612/x - Step 3: Cross multiply
2,128,261.68x = 3,189,620.16 × 864,612 - Step 4: Simplify right side
2,128,261.68x = 2,757,783,865,777.92 - Step 5: Solve for x
x = 2,757,783,865,777.92/2,128,261.68 - Step 6: Final answer
x = 1,295,791.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.