Finding the Fourth Proportional to 814,170.70, 1,221,256.05 and 394,266.70
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Solution
The fourth proportional to 814,170.70, 1,221,256.05 and 394,266.70 is: 591,400.05
Step by Step Solution
- Step 1: Write the proportion equation
814,170.70 : 1,221,256.05 = 394,266.70 : x - Step 2: Convert to fraction form
814,170.70/1,221,256.05 = 394,266.70/x - Step 3: Cross multiply
814,170.70x = 1,221,256.05 × 394,266.70 - Step 4: Simplify right side
814,170.70x = 481,500,592,688.54 - Step 5: Solve for x
x = 481,500,592,688.54/814,170.70 - Step 6: Final answer
x = 591,400.05
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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.