Finding the Fourth Proportional to 1,188,515.01, 1,782,325.70 and 430,169.12
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Solution
The fourth proportional to 1,188,515.01, 1,782,325.70 and 430,169.12 is: 645,091.96
Step by Step Solution
- Step 1: Write the proportion equation
1,188,515.01 : 1,782,325.70 = 430,169.12 : x - Step 2: Convert to fraction form
1,188,515.01/1,782,325.70 = 430,169.12/x - Step 3: Cross multiply
1,188,515.01x = 1,782,325.70 × 430,169.12 - Step 4: Simplify right side
1,188,515.01x = 766,701,477,922.38 - Step 5: Solve for x
x = 766,701,477,922.38/1,188,515.01 - Step 6: Final answer
x = 645,091.96
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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.