Finding the Fourth Proportional to 685,209.97, 945,559.08 and 379,297.81
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Solution
The fourth proportional to 685,209.97, 945,559.08 and 379,297.81 is: 523,413.99
Step by Step Solution
- Step 1: Write the proportion equation
685,209.97 : 945,559.08 = 379,297.81 : x - Step 2: Convert to fraction form
685,209.97/945,559.08 = 379,297.81/x - Step 3: Cross multiply
685,209.97x = 945,559.08 × 379,297.81 - Step 4: Simplify right side
685,209.97x = 358,648,481,645.33 - Step 5: Solve for x
x = 358,648,481,645.33/685,209.97 - Step 6: Final answer
x = 523,413.99
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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.