Finding the Fourth Proportional to 685,858.70, 1,029,452.07 and 331,121.63
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Solution
The fourth proportional to 685,858.70, 1,029,452.07 and 331,121.63 is: 497,003.02
Step by Step Solution
- Step 1: Write the proportion equation
685,858.70 : 1,029,452.07 = 331,121.63 : x - Step 2: Convert to fraction form
685,858.70/1,029,452.07 = 331,121.63/x - Step 3: Cross multiply
685,858.70x = 1,029,452.07 × 331,121.63 - Step 4: Simplify right side
685,858.70x = 340,873,847,425.27 - Step 5: Solve for x
x = 340,873,847,425.27/685,858.70 - Step 6: Final answer
x = 497,003.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.