Finding the Fourth Proportional to 739,659.44, 1,020,720.11 and 412,977.47
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Solution
The fourth proportional to 739,659.44, 1,020,720.11 and 412,977.47 is: 569,903.37
Step by Step Solution
- Step 1: Write the proportion equation
739,659.44 : 1,020,720.11 = 412,977.47 : x - Step 2: Convert to fraction form
739,659.44/1,020,720.11 = 412,977.47/x - Step 3: Cross multiply
739,659.44x = 1,020,720.11 × 412,977.47 - Step 4: Simplify right side
739,659.44x = 421,534,405,265.13 - Step 5: Solve for x
x = 421,534,405,265.13/739,659.44 - Step 6: Final answer
x = 569,903.37
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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.