Finding the Fourth Proportional to 782,122.75, 1,079,329.41 and 424,426.75
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Solution
The fourth proportional to 782,122.75, 1,079,329.41 and 424,426.75 is: 585,708.92
Step by Step Solution
- Step 1: Write the proportion equation
782,122.75 : 1,079,329.41 = 424,426.75 : x - Step 2: Convert to fraction form
782,122.75/1,079,329.41 = 424,426.75/x - Step 3: Cross multiply
782,122.75x = 1,079,329.41 × 424,426.75 - Step 4: Simplify right side
782,122.75x = 458,096,273,665.72 - Step 5: Solve for x
x = 458,096,273,665.72/782,122.75 - Step 6: Final answer
x = 585,708.92
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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.