Finding the Fourth Proportional to 624,615.43, 861,969.11 and 338,135.31
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Solution
The fourth proportional to 624,615.43, 861,969.11 and 338,135.31 is: 466,626.63
Step by Step Solution
- Step 1: Write the proportion equation
624,615.43 : 861,969.11 = 338,135.31 : x - Step 2: Convert to fraction form
624,615.43/861,969.11 = 338,135.31/x - Step 3: Cross multiply
624,615.43x = 861,969.11 × 338,135.31 - Step 4: Simplify right side
624,615.43x = 291,462,192,220.27 - Step 5: Solve for x
x = 291,462,192,220.27/624,615.43 - Step 6: Final answer
x = 466,626.63
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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.