Finding the Fourth Proportional to 685,891.18, 1,028,868.36 and 331,203.52
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Solution
The fourth proportional to 685,891.18, 1,028,868.36 and 331,203.52 is: 496,820.53
Step by Step Solution
- Step 1: Write the proportion equation
685,891.18 : 1,028,868.36 = 331,203.52 : x - Step 2: Convert to fraction form
685,891.18/1,028,868.36 = 331,203.52/x - Step 3: Cross multiply
685,891.18x = 1,028,868.36 × 331,203.52 - Step 4: Simplify right side
685,891.18x = 340,764,822,448.63 - Step 5: Solve for x
x = 340,764,822,448.63/685,891.18 - Step 6: Final answer
x = 496,820.53
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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.