Finding the Fourth Proportional to 519,140.63, 716,414.07 and 280,676.63
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Solution
The fourth proportional to 519,140.63, 716,414.07 and 280,676.63 is: 387,333.75
Step by Step Solution
- Step 1: Write the proportion equation
519,140.63 : 716,414.07 = 280,676.63 : x - Step 2: Convert to fraction form
519,140.63/716,414.07 = 280,676.63/x - Step 3: Cross multiply
519,140.63x = 716,414.07 × 280,676.63 - Step 4: Simplify right side
519,140.63x = 201,080,683,270.11 - Step 5: Solve for x
x = 201,080,683,270.11/519,140.63 - Step 6: Final answer
x = 387,333.75
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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.