Finding the Fourth Proportional to 690,739.50, 1,036,699.74 and 270,310.62
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Solution
The fourth proportional to 690,739.50, 1,036,699.74 and 270,310.62 is: 405,697.01
Step by Step Solution
- Step 1: Write the proportion equation
690,739.50 : 1,036,699.74 = 270,310.62 : x - Step 2: Convert to fraction form
690,739.50/1,036,699.74 = 270,310.62/x - Step 3: Cross multiply
690,739.50x = 1,036,699.74 × 270,310.62 - Step 4: Simplify right side
690,739.50x = 280,230,949,473.24 - Step 5: Solve for x
x = 280,230,949,473.24/690,739.50 - Step 6: Final answer
x = 405,697.01
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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.