Finding the Fourth Proportional to 730,775.18, 1,008,189.78 and 444,190.70
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Solution
The fourth proportional to 730,775.18, 1,008,189.78 and 444,190.70 is: 612,812.99
Step by Step Solution
- Step 1: Write the proportion equation
730,775.18 : 1,008,189.78 = 444,190.70 : x - Step 2: Convert to fraction form
730,775.18/1,008,189.78 = 444,190.70/x - Step 3: Cross multiply
730,775.18x = 1,008,189.78 × 444,190.70 - Step 4: Simplify right side
730,775.18x = 447,828,524,111.05 - Step 5: Solve for x
x = 447,828,524,111.05/730,775.18 - Step 6: Final answer
x = 612,812.99
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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.