Finding the Fourth Proportional to 730,450.77, 1,008,122.19 and 420,346.98
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Solution
The fourth proportional to 730,450.77, 1,008,122.19 and 420,346.98 is: 580,136.46
Step by Step Solution
- Step 1: Write the proportion equation
730,450.77 : 1,008,122.19 = 420,346.98 : x - Step 2: Convert to fraction form
730,450.77/1,008,122.19 = 420,346.98/x - Step 3: Cross multiply
730,450.77x = 1,008,122.19 × 420,346.98 - Step 4: Simplify right side
730,450.77x = 423,761,118,825.64 - Step 5: Solve for x
x = 423,761,118,825.64/730,450.77 - Step 6: Final answer
x = 580,136.46
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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.