Finding the Fourth Proportional to 3,078,767.20, 4,610,277.60 and 2,275,700.80
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Solution
The fourth proportional to 3,078,767.20, 4,610,277.60 and 2,275,700.80 is: 3,407,731.65
Step by Step Solution
- Step 1: Write the proportion equation
3,078,767.20 : 4,610,277.60 = 2,275,700.80 : x - Step 2: Convert to fraction form
3,078,767.20/4,610,277.60 = 2,275,700.80/x - Step 3: Cross multiply
3,078,767.20x = 4,610,277.60 × 2,275,700.80 - Step 4: Simplify right side
3,078,767.20x = 10,491,612,422,542.08 - Step 5: Solve for x
x = 10,491,612,422,542.08/3,078,767.20 - Step 6: Final answer
x = 3,407,731.65
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1.5x scale
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.