Finding the Fourth Proportional to 685,515.36, 1,026,933.84 and 472,245.60
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Solution
The fourth proportional to 685,515.36, 1,026,933.84 and 472,245.60 is: 707,445.84
Step by Step Solution
- Step 1: Write the proportion equation
685,515.36 : 1,026,933.84 = 472,245.60 : x - Step 2: Convert to fraction form
685,515.36/1,026,933.84 = 472,245.60/x - Step 3: Cross multiply
685,515.36x = 1,026,933.84 × 472,245.60 - Step 4: Simplify right side
685,515.36x = 484,964,987,431.10 - Step 5: Solve for x
x = 484,964,987,431.10/685,515.36 - Step 6: Final answer
x = 707,445.84
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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.