Finding the Fourth Proportional to 518,986.26, 716,201.73 and 280,522.26
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Solution
The fourth proportional to 518,986.26, 716,201.73 and 280,522.26 is: 387,121.09
Step by Step Solution
- Step 1: Write the proportion equation
518,986.26 : 716,201.73 = 280,522.26 : x - Step 2: Convert to fraction form
518,986.26/716,201.73 = 280,522.26/x - Step 3: Cross multiply
518,986.26x = 716,201.73 × 280,522.26 - Step 4: Simplify right side
518,986.26x = 200,910,527,915.51 - Step 5: Solve for x
x = 200,910,527,915.51/518,986.26 - Step 6: Final answer
x = 387,121.09
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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.