Finding the Fourth Proportional to 1,204,447.81, 1,661,984.77 and 688,235.09
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Solution
The fourth proportional to 1,204,447.81, 1,661,984.77 and 688,235.09 is: 949,676.88
Step by Step Solution
- Step 1: Write the proportion equation
1,204,447.81 : 1,661,984.77 = 688,235.09 : x - Step 2: Convert to fraction form
1,204,447.81/1,661,984.77 = 688,235.09/x - Step 3: Cross multiply
1,204,447.81x = 1,661,984.77 × 688,235.09 - Step 4: Simplify right side
1,204,447.81x = 1,143,836,237,759.58 - Step 5: Solve for x
x = 1,143,836,237,759.58/1,204,447.81 - Step 6: Final answer
x = 949,676.88
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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.