Finding the Fourth Proportional to 320,542.08, 444,370.90 and 303,478.01
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Solution
The fourth proportional to 320,542.08, 444,370.90 and 303,478.01 is: 420,714.80
Step by Step Solution
- Step 1: Write the proportion equation
320,542.08 : 444,370.90 = 303,478.01 : x - Step 2: Convert to fraction form
320,542.08/444,370.90 = 303,478.01/x - Step 3: Cross multiply
320,542.08x = 444,370.90 × 303,478.01 - Step 4: Simplify right side
320,542.08x = 134,856,796,433.91 - Step 5: Solve for x
x = 134,856,796,433.91/320,542.08 - Step 6: Final answer
x = 420,714.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.