Finding the Fourth Proportional to 863,405.20, 1,295,107.80 and 653,453.20
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Solution
The fourth proportional to 863,405.20, 1,295,107.80 and 653,453.20 is: 980,179.80
Step by Step Solution
- Step 1: Write the proportion equation
863,405.20 : 1,295,107.80 = 653,453.20 : x - Step 2: Convert to fraction form
863,405.20/1,295,107.80 = 653,453.20/x - Step 3: Cross multiply
863,405.20x = 1,295,107.80 × 653,453.20 - Step 4: Simplify right side
863,405.20x = 846,292,336,254.96 - Step 5: Solve for x
x = 846,292,336,254.96/863,405.20 - Step 6: Final answer
x = 980,179.80
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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.