Finding the Fourth Proportional to 547,353.10, 821,029.65 and 460,747.90
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Solution
The fourth proportional to 547,353.10, 821,029.65 and 460,747.90 is: 691,121.85
Step by Step Solution
- Step 1: Write the proportion equation
547,353.10 : 821,029.65 = 460,747.90 : x - Step 2: Convert to fraction form
547,353.10/821,029.65 = 460,747.90/x - Step 3: Cross multiply
547,353.10x = 821,029.65 × 460,747.90 - Step 4: Simplify right side
547,353.10x = 378,287,687,075.24 - Step 5: Solve for x
x = 378,287,687,075.24/547,353.10 - Step 6: Final answer
x = 691,121.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.