Finding the Fourth Proportional to 685,628.96, 946,170.59 and 379,698.62
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Solution
The fourth proportional to 685,628.96, 946,170.59 and 379,698.62 is: 523,985.54
Step by Step Solution
- Step 1: Write the proportion equation
685,628.96 : 946,170.59 = 379,698.62 : x - Step 2: Convert to fraction form
685,628.96/946,170.59 = 379,698.62/x - Step 3: Cross multiply
685,628.96x = 946,170.59 × 379,698.62 - Step 4: Simplify right side
685,628.96x = 359,259,660,678.24 - Step 5: Solve for x
x = 359,259,660,678.24/685,628.96 - Step 6: Final answer
x = 523,985.54
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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.