Finding the Fourth Proportional to 313,821.80, 470,732.70 and 274,455.80
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Solution
The fourth proportional to 313,821.80, 470,732.70 and 274,455.80 is: 411,683.70
Step by Step Solution
- Step 1: Write the proportion equation
313,821.80 : 470,732.70 = 274,455.80 : x - Step 2: Convert to fraction form
313,821.80/470,732.70 = 274,455.80/x - Step 3: Cross multiply
313,821.80x = 470,732.70 × 274,455.80 - Step 4: Simplify right side
313,821.80x = 129,195,319,764.66 - Step 5: Solve for x
x = 129,195,319,764.66/313,821.80 - Step 6: Final answer
x = 411,683.70
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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.