Finding the Fourth Proportional to 2,322,239.12, 3,204,639.08 and 1,289,688.40
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Solution
The fourth proportional to 2,322,239.12, 3,204,639.08 and 1,289,688.40 is: 1,779,741.72
Step by Step Solution
- Step 1: Write the proportion equation
2,322,239.12 : 3,204,639.08 = 1,289,688.40 : x - Step 2: Convert to fraction form
2,322,239.12/3,204,639.08 = 1,289,688.40/x - Step 3: Cross multiply
2,322,239.12x = 3,204,639.08 × 1,289,688.40 - Step 4: Simplify right side
2,322,239.12x = 4,132,985,847,662.67 - Step 5: Solve for x
x = 4,132,985,847,662.67/2,322,239.12 - Step 6: Final answer
x = 1,779,741.72
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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.