Finding the Fourth Proportional to 519,198.44, 716,818.22 and 398,107.12
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Solution
The fourth proportional to 519,198.44, 716,818.22 and 398,107.12 is: 549,636.55
Step by Step Solution
- Step 1: Write the proportion equation
519,198.44 : 716,818.22 = 398,107.12 : x - Step 2: Convert to fraction form
519,198.44/716,818.22 = 398,107.12/x - Step 3: Cross multiply
519,198.44x = 716,818.22 × 398,107.12 - Step 4: Simplify right side
519,198.44x = 285,370,437,127.73 - Step 5: Solve for x
x = 285,370,437,127.73/519,198.44 - Step 6: Final answer
x = 549,636.55
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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.