Finding the Fourth Proportional to 763,630.12, 1,053,748.08 and 441,361.09
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Solution
The fourth proportional to 763,630.12, 1,053,748.08 and 441,361.09 is: 609,042.77
Step by Step Solution
- Step 1: Write the proportion equation
763,630.12 : 1,053,748.08 = 441,361.09 : x - Step 2: Convert to fraction form
763,630.12/1,053,748.08 = 441,361.09/x - Step 3: Cross multiply
763,630.12x = 1,053,748.08 × 441,361.09 - Step 4: Simplify right side
763,630.12x = 465,083,401,174.21 - Step 5: Solve for x
x = 465,083,401,174.21/763,630.12 - Step 6: Final answer
x = 609,042.77
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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.