Finding the Fourth Proportional to 864,456.20, 1,192,964.88 and 477,317.12
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Solution
The fourth proportional to 864,456.20, 1,192,964.88 and 477,317.12 is: 658,706.09
Step by Step Solution
- Step 1: Write the proportion equation
864,456.20 : 1,192,964.88 = 477,317.12 : x - Step 2: Convert to fraction form
864,456.20/1,192,964.88 = 477,317.12/x - Step 3: Cross multiply
864,456.20x = 1,192,964.88 × 477,317.12 - Step 4: Simplify right side
864,456.20x = 569,422,560,782.75 - Step 5: Solve for x
x = 569,422,560,782.75/864,456.20 - Step 6: Final answer
x = 658,706.09
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1.5x scale
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.