Finding the Fourth Proportional to 813,290.24, 1,122,418.68 and 450,792.56
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Solution
The fourth proportional to 813,290.24, 1,122,418.68 and 450,792.56 is: 622,137.05
Step by Step Solution
- Step 1: Write the proportion equation
813,290.24 : 1,122,418.68 = 450,792.56 : x - Step 2: Convert to fraction form
813,290.24/1,122,418.68 = 450,792.56/x - Step 3: Cross multiply
813,290.24x = 1,122,418.68 × 450,792.56 - Step 4: Simplify right side
813,290.24x = 505,977,990,149.02 - Step 5: Solve for x
x = 505,977,990,149.02/813,290.24 - Step 6: Final answer
x = 622,137.05
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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.