Finding the Fourth Proportional to 748,334.80, 1,122,502.20 and 449,153.20
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Solution
The fourth proportional to 748,334.80, 1,122,502.20 and 449,153.20 is: 673,729.80
Step by Step Solution
- Step 1: Write the proportion equation
748,334.80 : 1,122,502.20 = 449,153.20 : x - Step 2: Convert to fraction form
748,334.80/1,122,502.20 = 449,153.20/x - Step 3: Cross multiply
748,334.80x = 1,122,502.20 × 449,153.20 - Step 4: Simplify right side
748,334.80x = 504,175,455,137.04 - Step 5: Solve for x
x = 504,175,455,137.04/748,334.80 - Step 6: Final answer
x = 673,729.80
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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.