Finding the Fourth Proportional to 719,454.58, 992,821.29 and 397,157.75
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Solution
The fourth proportional to 719,454.58, 992,821.29 and 397,157.75 is: 548,063.33
Step by Step Solution
- Step 1: Write the proportion equation
719,454.58 : 992,821.29 = 397,157.75 : x - Step 2: Convert to fraction form
719,454.58/992,821.29 = 397,157.75/x - Step 3: Cross multiply
719,454.58x = 992,821.29 × 397,157.75 - Step 4: Simplify right side
719,454.58x = 394,306,674,776.76 - Step 5: Solve for x
x = 394,306,674,776.76/719,454.58 - Step 6: Final answer
x = 548,063.33
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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.