Finding the Fourth Proportional to 718,220.44, 991,050.98 and 412,310.18
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Solution
The fourth proportional to 718,220.44, 991,050.98 and 412,310.18 is: 568,934.53
Step by Step Solution
- Step 1: Write the proportion equation
718,220.44 : 991,050.98 = 412,310.18 : x - Step 2: Convert to fraction form
718,220.44/991,050.98 = 412,310.18/x - Step 3: Cross multiply
718,220.44x = 991,050.98 × 412,310.18 - Step 4: Simplify right side
718,220.44x = 408,620,407,952.98 - Step 5: Solve for x
x = 408,620,407,952.98/718,220.44 - Step 6: Final answer
x = 568,934.53
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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.