Finding the Fourth Proportional to 1,203,821.71, 1,661,263.36 and 659,947.62
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Solution
The fourth proportional to 1,203,821.71, 1,661,263.36 and 659,947.62 is: 910,721.90
Step by Step Solution
- Step 1: Write the proportion equation
1,203,821.71 : 1,661,263.36 = 659,947.62 : x - Step 2: Convert to fraction form
1,203,821.71/1,661,263.36 = 659,947.62/x - Step 3: Cross multiply
1,203,821.71x = 1,661,263.36 × 659,947.62 - Step 4: Simplify right side
1,203,821.71x = 1,096,346,800,625.20 - Step 5: Solve for x
x = 1,096,346,800,625.20/1,203,821.71 - Step 6: Final answer
x = 910,721.90
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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.