Finding the Fourth Proportional to 807,714.40, 1,211,571.60 and 471,135.10
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Solution
The fourth proportional to 807,714.40, 1,211,571.60 and 471,135.10 is: 706,702.65
Step by Step Solution
- Step 1: Write the proportion equation
807,714.40 : 1,211,571.60 = 471,135.10 : x - Step 2: Convert to fraction form
807,714.40/1,211,571.60 = 471,135.10/x - Step 3: Cross multiply
807,714.40x = 1,211,571.60 × 471,135.10 - Step 4: Simplify right side
807,714.40x = 570,813,906,923.16 - Step 5: Solve for x
x = 570,813,906,923.16/807,714.40 - Step 6: Final answer
x = 706,702.65
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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.