Finding the Fourth Proportional to 752,722.43, 1,128,845.81 and 247,200.12
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Solution
The fourth proportional to 752,722.43, 1,128,845.81 and 247,200.12 is: 370,722.07
Step by Step Solution
- Step 1: Write the proportion equation
752,722.43 : 1,128,845.81 = 247,200.12 : x - Step 2: Convert to fraction form
752,722.43/1,128,845.81 = 247,200.12/x - Step 3: Cross multiply
752,722.43x = 1,128,845.81 × 247,200.12 - Step 4: Simplify right side
752,722.43x = 279,050,820,311.50 - Step 5: Solve for x
x = 279,050,820,311.50/752,722.43 - Step 6: Final answer
x = 370,722.07
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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.