Finding the Fourth Proportional to 709,601.91, 1,064,872.98 and 389,976.99
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Solution
The fourth proportional to 709,601.91, 1,064,872.98 and 389,976.99 is: 585,223.84
Step by Step Solution
- Step 1: Write the proportion equation
709,601.91 : 1,064,872.98 = 389,976.99 : x - Step 2: Convert to fraction form
709,601.91/1,064,872.98 = 389,976.99/x - Step 3: Cross multiply
709,601.91x = 1,064,872.98 × 389,976.99 - Step 4: Simplify right side
709,601.91x = 415,275,957,522.85 - Step 5: Solve for x
x = 415,275,957,522.85/709,601.91 - Step 6: Final answer
x = 585,223.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.