Finding the Fourth Proportional to 847,261.36, 1,271,183.68 and 531,348.40
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Solution
The fourth proportional to 847,261.36, 1,271,183.68 and 531,348.40 is: 797,205.50
Step by Step Solution
- Step 1: Write the proportion equation
847,261.36 : 1,271,183.68 = 531,348.40 : x - Step 2: Convert to fraction form
847,261.36/1,271,183.68 = 531,348.40/x - Step 3: Cross multiply
847,261.36x = 1,271,183.68 × 531,348.40 - Step 4: Simplify right side
847,261.36x = 675,441,414,474.11 - Step 5: Solve for x
x = 675,441,414,474.11/847,261.36 - Step 6: Final answer
x = 797,205.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.