Finding the Fourth Proportional to 491,454.26, 677,946.75 and 338,226.43
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Solution
The fourth proportional to 491,454.26, 677,946.75 and 338,226.43 is: 466,573.45
Step by Step Solution
- Step 1: Write the proportion equation
491,454.26 : 677,946.75 = 338,226.43 : x - Step 2: Convert to fraction form
491,454.26/677,946.75 = 338,226.43/x - Step 3: Cross multiply
491,454.26x = 677,946.75 × 338,226.43 - Step 4: Simplify right side
491,454.26x = 229,299,508,982.60 - Step 5: Solve for x
x = 229,299,508,982.60/491,454.26 - Step 6: Final answer
x = 466,573.45
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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.