Finding the Fourth Proportional to 2,479,848.84, 3,422,190.06 and 1,392,122.52
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Solution
The fourth proportional to 2,479,848.84, 3,422,190.06 and 1,392,122.52 is: 1,921,128.33
Step by Step Solution
- Step 1: Write the proportion equation
2,479,848.84 : 3,422,190.06 = 1,392,122.52 : x - Step 2: Convert to fraction form
2,479,848.84/3,422,190.06 = 1,392,122.52/x - Step 3: Cross multiply
2,479,848.84x = 3,422,190.06 × 1,392,122.52 - Step 4: Simplify right side
2,479,848.84x = 4,764,107,850,246.15 - Step 5: Solve for x
x = 4,764,107,850,246.15/2,479,848.84 - Step 6: Final answer
x = 1,921,128.33
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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.