Finding the Fourth Proportional to 2,155,236.20, 3,232,737.10 and 659,328.20
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Solution
The fourth proportional to 2,155,236.20, 3,232,737.10 and 659,328.20 is: 988,956.45
Step by Step Solution
- Step 1: Write the proportion equation
2,155,236.20 : 3,232,737.10 = 659,328.20 : x - Step 2: Convert to fraction form
2,155,236.20/3,232,737.10 = 659,328.20/x - Step 3: Cross multiply
2,155,236.20x = 3,232,737.10 × 659,328.20 - Step 4: Simplify right side
2,155,236.20x = 2,131,434,733,216.22 - Step 5: Solve for x
x = 2,131,434,733,216.22/2,155,236.20 - Step 6: Final answer
x = 988,956.45
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1.5x scale
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.