Finding the Fourth Proportional to 780,919.97, 1,170,043.11 and 426,183.17
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Solution
The fourth proportional to 780,919.97, 1,170,043.11 and 426,183.17 is: 638,545.18
Step by Step Solution
- Step 1: Write the proportion equation
780,919.97 : 1,170,043.11 = 426,183.17 : x - Step 2: Convert to fraction form
780,919.97/1,170,043.11 = 426,183.17/x - Step 3: Cross multiply
780,919.97x = 1,170,043.11 × 426,183.17 - Step 4: Simplify right side
780,919.97x = 498,652,675,806.24 - Step 5: Solve for x
x = 498,652,675,806.24/780,919.97 - Step 6: Final answer
x = 638,545.18
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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.