Finding the Fourth Proportional to 490,949.16, 677,090.18 and 338,231.08
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Solution
The fourth proportional to 490,949.16, 677,090.18 and 338,231.08 is: 466,469.77
Step by Step Solution
- Step 1: Write the proportion equation
490,949.16 : 677,090.18 = 338,231.08 : x - Step 2: Convert to fraction form
490,949.16/677,090.18 = 338,231.08/x - Step 3: Cross multiply
490,949.16x = 677,090.18 × 338,231.08 - Step 4: Simplify right side
490,949.16x = 229,012,942,838.79 - Step 5: Solve for x
x = 229,012,942,838.79/490,949.16 - Step 6: Final answer
x = 466,469.77
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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.