Finding the Fourth Proportional to 1,394,220.70, 2,091,287.85 and 396,948.70
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Solution
The fourth proportional to 1,394,220.70, 2,091,287.85 and 396,948.70 is: 595,410.75
Step by Step Solution
- Step 1: Write the proportion equation
1,394,220.70 : 2,091,287.85 = 396,948.70 : x - Step 2: Convert to fraction form
1,394,220.70/2,091,287.85 = 396,948.70/x - Step 3: Cross multiply
1,394,220.70x = 2,091,287.85 × 396,948.70 - Step 4: Simplify right side
1,394,220.70x = 830,133,993,383.30 - Step 5: Solve for x
x = 830,133,993,383.30/1,394,220.70 - Step 6: Final answer
x = 595,410.75
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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.