Finding the Fourth Proportional to 642,466.53, 886,584.61 and 352,074.62
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Solution
The fourth proportional to 642,466.53, 886,584.61 and 352,074.62 is: 485,852.46
Step by Step Solution
- Step 1: Write the proportion equation
642,466.53 : 886,584.61 = 352,074.62 : x - Step 2: Convert to fraction form
642,466.53/886,584.61 = 352,074.62/x - Step 3: Cross multiply
642,466.53x = 886,584.61 × 352,074.62 - Step 4: Simplify right side
642,466.53x = 312,143,942,760.25 - Step 5: Solve for x
x = 312,143,942,760.25/642,466.53 - Step 6: Final answer
x = 485,852.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.