Finding the Fourth Proportional to 1,112,640.75, 1,668,811.68 and 313,986.42
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Solution
The fourth proportional to 1,112,640.75, 1,668,811.68 and 313,986.42 is: 470,937.46
Step by Step Solution
- Step 1: Write the proportion equation
1,112,640.75 : 1,668,811.68 = 313,986.42 : x - Step 2: Convert to fraction form
1,112,640.75/1,668,811.68 = 313,986.42/x - Step 3: Cross multiply
1,112,640.75x = 1,668,811.68 × 313,986.42 - Step 4: Simplify right side
1,112,640.75x = 523,984,205,057.39 - Step 5: Solve for x
x = 523,984,205,057.39/1,112,640.75 - Step 6: Final answer
x = 470,937.46
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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.