Finding the Fourth Proportional to 1,203,819.21, 1,661,259.92 and 659,945.12
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Solution
The fourth proportional to 1,203,819.21, 1,661,259.92 and 659,945.12 is: 910,718.45
Step by Step Solution
- Step 1: Write the proportion equation
1,203,819.21 : 1,661,259.92 = 659,945.12 : x - Step 2: Convert to fraction form
1,203,819.21/1,661,259.92 = 659,945.12/x - Step 3: Cross multiply
1,203,819.21x = 1,661,259.92 × 659,945.12 - Step 4: Simplify right side
1,203,819.21x = 1,096,340,365,649.57 - Step 5: Solve for x
x = 1,096,340,365,649.57/1,203,819.21 - Step 6: Final answer
x = 910,718.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.