Finding the Fourth Proportional to 2,379,412.56, 3,283,566.36 and 1,291,660.80
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Solution
The fourth proportional to 2,379,412.56, 3,283,566.36 and 1,291,660.80 is: 1,782,479.43
Step by Step Solution
- Step 1: Write the proportion equation
2,379,412.56 : 3,283,566.36 = 1,291,660.80 : x - Step 2: Convert to fraction form
2,379,412.56/3,283,566.36 = 1,291,660.80/x - Step 3: Cross multiply
2,379,412.56x = 3,283,566.36 × 1,291,660.80 - Step 4: Simplify right side
2,379,412.56x = 4,241,253,951,410.69 - Step 5: Solve for x
x = 4,241,253,951,410.69/2,379,412.56 - Step 6: Final answer
x = 1,782,479.43
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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.