Finding the Fourth Proportional to 930,879.20, 1,396,318.80 and 887,576.60
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Solution
The fourth proportional to 930,879.20, 1,396,318.80 and 887,576.60 is: 1,331,364.90
Step by Step Solution
- Step 1: Write the proportion equation
930,879.20 : 1,396,318.80 = 887,576.60 : x - Step 2: Convert to fraction form
930,879.20/1,396,318.80 = 887,576.60/x - Step 3: Cross multiply
930,879.20x = 1,396,318.80 × 887,576.60 - Step 4: Simplify right side
930,879.20x = 1,239,339,893,020.08 - Step 5: Solve for x
x = 1,239,339,893,020.08/930,879.20 - Step 6: Final answer
x = 1,331,364.90
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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.