Finding the Fourth Proportional to 752,723.43, 1,128,847.31 and 247,201.12
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Solution
The fourth proportional to 752,723.43, 1,128,847.31 and 247,201.12 is: 370,723.57
Step by Step Solution
- Step 1: Write the proportion equation
752,723.43 : 1,128,847.31 = 247,201.12 : x - Step 2: Convert to fraction form
752,723.43/1,128,847.31 = 247,201.12/x - Step 3: Cross multiply
752,723.43x = 1,128,847.31 × 247,201.12 - Step 4: Simplify right side
752,723.43x = 279,052,319,340.99 - Step 5: Solve for x
x = 279,052,319,340.99/752,723.43 - Step 6: Final answer
x = 370,723.57
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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.