Finding the Fourth Proportional to 3,844,378.40, 5,305,148.80 and 2,125,454.72
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Solution
The fourth proportional to 3,844,378.40, 5,305,148.80 and 2,125,454.72 is: 2,933,075.88
Step by Step Solution
- Step 1: Write the proportion equation
3,844,378.40 : 5,305,148.80 = 2,125,454.72 : x - Step 2: Convert to fraction form
3,844,378.40/5,305,148.80 = 2,125,454.72/x - Step 3: Cross multiply
3,844,378.40x = 5,305,148.80 × 2,125,454.72 - Step 4: Simplify right side
3,844,378.40x = 11,275,853,557,262.34 - Step 5: Solve for x
x = 11,275,853,557,262.34/3,844,378.40 - Step 6: Final answer
x = 2,933,075.88
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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.