Finding the Fourth Proportional to 396,867.79, 595,383.70 and 130,644.28
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Solution
The fourth proportional to 396,867.79, 595,383.70 and 130,644.28 is: 195,993.42
Step by Step Solution
- Step 1: Write the proportion equation
396,867.79 : 595,383.70 = 130,644.28 : x - Step 2: Convert to fraction form
396,867.79/595,383.70 = 130,644.28/x - Step 3: Cross multiply
396,867.79x = 595,383.70 × 130,644.28 - Step 4: Simplify right side
396,867.79x = 77,783,474,810.24 - Step 5: Solve for x
x = 77,783,474,810.24/396,867.79 - Step 6: Final answer
x = 195,993.42
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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.