Finding the Fourth Proportional to 748,308.70, 1,122,741.90 and 449,004.09
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Solution
The fourth proportional to 748,308.70, 1,122,741.90 and 449,004.09 is: 673,673.44
Step by Step Solution
- Step 1: Write the proportion equation
748,308.70 : 1,122,741.90 = 449,004.09 : x - Step 2: Convert to fraction form
748,308.70/1,122,741.90 = 449,004.09/x - Step 3: Cross multiply
748,308.70x = 1,122,741.90 × 449,004.09 - Step 4: Simplify right side
748,308.70x = 504,115,699,220.13 - Step 5: Solve for x
x = 504,115,699,220.13/748,308.70 - Step 6: Final answer
x = 673,673.44
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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.