Finding the Fourth Proportional to 788,660.13, 1,183,189.60 and 220,040.92
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Solution
The fourth proportional to 788,660.13, 1,183,189.60 and 220,040.92 is: 330,117.02
Step by Step Solution
- Step 1: Write the proportion equation
788,660.13 : 1,183,189.60 = 220,040.92 : x - Step 2: Convert to fraction form
788,660.13/1,183,189.60 = 220,040.92/x - Step 3: Cross multiply
788,660.13x = 1,183,189.60 × 220,040.92 - Step 4: Simplify right side
788,660.13x = 260,350,128,634.74 - Step 5: Solve for x
x = 260,350,128,634.74/788,660.13 - Step 6: Final answer
x = 330,117.02
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1.5x scale
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.