Finding the Fourth Proportional to 751,975.47, 1,128,029.69 and 212,236.56
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Solution
The fourth proportional to 751,975.47, 1,128,029.69 and 212,236.56 is: 318,373.60
Step by Step Solution
- Step 1: Write the proportion equation
751,975.47 : 1,128,029.69 = 212,236.56 : x - Step 2: Convert to fraction form
751,975.47/1,128,029.69 = 212,236.56/x - Step 3: Cross multiply
751,975.47x = 1,128,029.69 × 212,236.56 - Step 4: Simplify right side
751,975.47x = 239,409,140,983.47 - Step 5: Solve for x
x = 239,409,140,983.47/751,975.47 - Step 6: Final answer
x = 318,373.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.