Finding the Fourth Proportional to 491,592.06, 678,409.59 and 276,739.66
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Solution
The fourth proportional to 491,592.06, 678,409.59 and 276,739.66 is: 381,907.80
Step by Step Solution
- Step 1: Write the proportion equation
491,592.06 : 678,409.59 = 276,739.66 : x - Step 2: Convert to fraction form
491,592.06/678,409.59 = 276,739.66/x - Step 3: Cross multiply
491,592.06x = 678,409.59 × 276,739.66 - Step 4: Simplify right side
491,592.06x = 187,742,841,163.13 - Step 5: Solve for x
x = 187,742,841,163.13/491,592.06 - Step 6: Final answer
x = 381,907.80
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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.