Finding the Fourth Proportional to 397,107.20, 595,660.80 and 355,116.80
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Solution
The fourth proportional to 397,107.20, 595,660.80 and 355,116.80 is: 532,675.20
Step by Step Solution
- Step 1: Write the proportion equation
397,107.20 : 595,660.80 = 355,116.80 : x - Step 2: Convert to fraction form
397,107.20/595,660.80 = 355,116.80/x - Step 3: Cross multiply
397,107.20x = 595,660.80 × 355,116.80 - Step 4: Simplify right side
397,107.20x = 211,529,157,181.44 - Step 5: Solve for x
x = 211,529,157,181.44/397,107.20 - Step 6: Final answer
x = 532,675.20
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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.