Finding the Fourth Proportional to 819,129.92, 1,130,262.24 and 456,474.24
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Solution
The fourth proportional to 819,129.92, 1,130,262.24 and 456,474.24 is: 629,858.08
Step by Step Solution
- Step 1: Write the proportion equation
819,129.92 : 1,130,262.24 = 456,474.24 : x - Step 2: Convert to fraction form
819,129.92/1,130,262.24 = 456,474.24/x - Step 3: Cross multiply
819,129.92x = 1,130,262.24 × 456,474.24 - Step 4: Simplify right side
819,129.92x = 515,935,597,004.70 - Step 5: Solve for x
x = 515,935,597,004.70/819,129.92 - Step 6: Final answer
x = 629,858.08
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1.5x scale
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.