Finding the Fourth Proportional to 636,793.52, 878,057.56 and 491,268.08
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Solution
The fourth proportional to 636,793.52, 878,057.56 and 491,268.08 is: 677,396.42
Step by Step Solution
- Step 1: Write the proportion equation
636,793.52 : 878,057.56 = 491,268.08 : x - Step 2: Convert to fraction form
636,793.52/878,057.56 = 491,268.08/x - Step 3: Cross multiply
636,793.52x = 878,057.56 × 491,268.08 - Step 4: Simplify right side
636,793.52x = 431,361,651,630.69 - Step 5: Solve for x
x = 431,361,651,630.69/636,793.52 - Step 6: Final answer
x = 677,396.42
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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.