Finding the Fourth Proportional to 717,943.24, 990,765.57 and 411,995.26
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Solution
The fourth proportional to 717,943.24, 990,765.57 and 411,995.26 is: 568,555.70
Step by Step Solution
- Step 1: Write the proportion equation
717,943.24 : 990,765.57 = 411,995.26 : x - Step 2: Convert to fraction form
717,943.24/990,765.57 = 411,995.26/x - Step 3: Cross multiply
717,943.24x = 990,765.57 × 411,995.26 - Step 4: Simplify right side
717,943.24x = 408,190,718,611.20 - Step 5: Solve for x
x = 408,190,718,611.20/717,943.24 - Step 6: Final answer
x = 568,555.70
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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.