Finding the Fourth Proportional to 1,729,639.80, 2,386,907.55 and 965,720.70
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Solution
The fourth proportional to 1,729,639.80, 2,386,907.55 and 965,720.70 is: 1,332,697.15
Step by Step Solution
- Step 1: Write the proportion equation
1,729,639.80 : 2,386,907.55 = 965,720.70 : x - Step 2: Convert to fraction form
1,729,639.80/2,386,907.55 = 965,720.70/x - Step 3: Cross multiply
1,729,639.80x = 2,386,907.55 × 965,720.70 - Step 4: Simplify right side
1,729,639.80x = 2,305,086,030,021.28 - Step 5: Solve for x
x = 2,305,086,030,021.28/1,729,639.80 - Step 6: Final answer
x = 1,332,697.15
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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.