Finding the Fourth Proportional to 1,786,629.60, 2,679,022.80 and 664,120.80
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Solution
The fourth proportional to 1,786,629.60, 2,679,022.80 and 664,120.80 is: 995,838.63
Step by Step Solution
- Step 1: Write the proportion equation
1,786,629.60 : 2,679,022.80 = 664,120.80 : x - Step 2: Convert to fraction form
1,786,629.60/2,679,022.80 = 664,120.80/x - Step 3: Cross multiply
1,786,629.60x = 2,679,022.80 × 664,120.80 - Step 4: Simplify right side
1,786,629.60x = 1,779,194,765,154.24 - Step 5: Solve for x
x = 1,779,194,765,154.24/1,786,629.60 - Step 6: Final answer
x = 995,838.63
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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.