Finding the Fourth Proportional to 748,405.68, 1,122,887.76 and 449,101.20
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Solution
The fourth proportional to 748,405.68, 1,122,887.76 and 449,101.20 is: 673,819.37
Step by Step Solution
- Step 1: Write the proportion equation
748,405.68 : 1,122,887.76 = 449,101.20 : x - Step 2: Convert to fraction form
748,405.68/1,122,887.76 = 449,101.20/x - Step 3: Cross multiply
748,405.68x = 1,122,887.76 × 449,101.20 - Step 4: Simplify right side
748,405.68x = 504,290,240,481.31 - Step 5: Solve for x
x = 504,290,240,481.31/748,405.68 - Step 6: Final answer
x = 673,819.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.