Finding the Fourth Proportional to 879,861.44, 1,214,209.76 and 477,453.44
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Solution
The fourth proportional to 879,861.44, 1,214,209.76 and 477,453.44 is: 658,886.28
Step by Step Solution
- Step 1: Write the proportion equation
879,861.44 : 1,214,209.76 = 477,453.44 : x - Step 2: Convert to fraction form
879,861.44/1,214,209.76 = 477,453.44/x - Step 3: Cross multiply
879,861.44x = 1,214,209.76 × 477,453.44 - Step 4: Simplify right side
879,861.44x = 579,728,626,793.58 - Step 5: Solve for x
x = 579,728,626,793.58/879,861.44 - Step 6: Final answer
x = 658,886.28
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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.