Finding the Fourth Proportional to 1,206,138.20, 1,809,207.30 and 926,202.20
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Solution
The fourth proportional to 1,206,138.20, 1,809,207.30 and 926,202.20 is: 1,389,303.30
Step by Step Solution
- Step 1: Write the proportion equation
1,206,138.20 : 1,809,207.30 = 926,202.20 : x - Step 2: Convert to fraction form
1,206,138.20/1,809,207.30 = 926,202.20/x - Step 3: Cross multiply
1,206,138.20x = 1,809,207.30 × 926,202.20 - Step 4: Simplify right side
1,206,138.20x = 1,675,691,781,516.06 - Step 5: Solve for x
x = 1,675,691,781,516.06/1,206,138.20 - Step 6: Final answer
x = 1,389,303.30
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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.