Finding the Fourth Proportional to 1,379,285.79, 1,903,396.11 and 775,673.79
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Solution
The fourth proportional to 1,379,285.79, 1,903,396.11 and 775,673.79 is: 1,070,419.55
Step by Step Solution
- Step 1: Write the proportion equation
1,379,285.79 : 1,903,396.11 = 775,673.79 : x - Step 2: Convert to fraction form
1,379,285.79/1,903,396.11 = 775,673.79/x - Step 3: Cross multiply
1,379,285.79x = 1,903,396.11 × 775,673.79 - Step 4: Simplify right side
1,379,285.79x = 1,476,414,474,514.96 - Step 5: Solve for x
x = 1,476,414,474,514.96/1,379,285.79 - Step 6: Final answer
x = 1,070,419.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.