Finding the Fourth Proportional to 739,808.93, 1,110,296.79 and 379,965.21
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Solution
The fourth proportional to 739,808.93, 1,110,296.79 and 379,965.21 is: 570,247.45
Step by Step Solution
- Step 1: Write the proportion equation
739,808.93 : 1,110,296.79 = 379,965.21 : x - Step 2: Convert to fraction form
739,808.93/1,110,296.79 = 379,965.21/x - Step 3: Cross multiply
739,808.93x = 1,110,296.79 × 379,965.21 - Step 4: Simplify right side
739,808.93x = 421,874,152,974.68 - Step 5: Solve for x
x = 421,874,152,974.68/739,808.93 - Step 6: Final answer
x = 570,247.45
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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.