Finding the Fourth Proportional to 2,129,520.96, 2,938,661.76 and 1,162,633.44
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Solution
The fourth proportional to 2,129,520.96, 2,938,661.76 and 1,162,633.44 is: 1,604,392.02
Step by Step Solution
- Step 1: Write the proportion equation
2,129,520.96 : 2,938,661.76 = 1,162,633.44 : x - Step 2: Convert to fraction form
2,129,520.96/2,938,661.76 = 1,162,633.44/x - Step 3: Cross multiply
2,129,520.96x = 2,938,661.76 × 1,162,633.44 - Step 4: Simplify right side
2,129,520.96x = 3,416,586,431,025.25 - Step 5: Solve for x
x = 3,416,586,431,025.25/2,129,520.96 - Step 6: Final answer
x = 1,604,392.02
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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.