Finding the Fourth Proportional to 911,647.12, 1,258,879.98 and 568,069.44
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Solution
The fourth proportional to 911,647.12, 1,258,879.98 and 568,069.44 is: 784,438.66
Step by Step Solution
- Step 1: Write the proportion equation
911,647.12 : 1,258,879.98 = 568,069.44 : x - Step 2: Convert to fraction form
911,647.12/1,258,879.98 = 568,069.44/x - Step 3: Cross multiply
911,647.12x = 1,258,879.98 × 568,069.44 - Step 4: Simplify right side
911,647.12x = 715,131,245,265.81 - Step 5: Solve for x
x = 715,131,245,265.81/911,647.12 - Step 6: Final answer
x = 784,438.66
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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.