Finding the Fourth Proportional to 782,114.88, 1,079,318.56 and 424,418.88
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Solution
The fourth proportional to 782,114.88, 1,079,318.56 and 424,418.88 is: 585,698.07
Step by Step Solution
- Step 1: Write the proportion equation
782,114.88 : 1,079,318.56 = 424,418.88 : x - Step 2: Convert to fraction form
782,114.88/1,079,318.56 = 424,418.88/x - Step 3: Cross multiply
782,114.88x = 1,079,318.56 × 424,418.88 - Step 4: Simplify right side
782,114.88x = 458,083,174,398.41 - Step 5: Solve for x
x = 458,083,174,398.41/782,114.88 - Step 6: Final answer
x = 585,698.07
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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.