Finding the Fourth Proportional to 420,245.58, 580,043.52 and 259,232.70
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Solution
The fourth proportional to 420,245.58, 580,043.52 and 259,232.70 is: 357,805.66
Step by Step Solution
- Step 1: Write the proportion equation
420,245.58 : 580,043.52 = 259,232.70 : x - Step 2: Convert to fraction form
420,245.58/580,043.52 = 259,232.70/x - Step 3: Cross multiply
420,245.58x = 580,043.52 × 259,232.70 - Step 4: Simplify right side
420,245.58x = 150,366,247,807.10 - Step 5: Solve for x
x = 150,366,247,807.10/420,245.58 - Step 6: Final answer
x = 357,805.66
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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.