Finding the Fourth Proportional to 624,471.11, 861,790.99 and 382,706.97
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Solution
The fourth proportional to 624,471.11, 861,790.99 and 382,706.97 is: 528,148.40
Step by Step Solution
- Step 1: Write the proportion equation
624,471.11 : 861,790.99 = 382,706.97 : x - Step 2: Convert to fraction form
624,471.11/861,790.99 = 382,706.97/x - Step 3: Cross multiply
624,471.11x = 861,790.99 × 382,706.97 - Step 4: Simplify right side
624,471.11x = 329,813,418,556.20 - Step 5: Solve for x
x = 329,813,418,556.20/624,471.11 - Step 6: Final answer
x = 528,148.40
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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.