Finding the Fourth Proportional to 396,745.98, 547,676.99 and 267,858.97
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Solution
The fourth proportional to 396,745.98, 547,676.99 and 267,858.97 is: 369,758.48
Step by Step Solution
- Step 1: Write the proportion equation
396,745.98 : 547,676.99 = 267,858.97 : x - Step 2: Convert to fraction form
396,745.98/547,676.99 = 267,858.97/x - Step 3: Cross multiply
396,745.98x = 547,676.99 × 267,858.97 - Step 4: Simplify right side
396,745.98x = 146,700,191,725.61 - Step 5: Solve for x
x = 146,700,191,725.61/396,745.98 - Step 6: Final answer
x = 369,758.48
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1.5x scale
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.