Finding the Fourth Proportional to 415,029.20, 622,543.80 and 415,029.20
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Solution
The fourth proportional to 415,029.20, 622,543.80 and 415,029.20 is: 622,543.80
Step by Step Solution
- Step 1: Write the proportion equation
415,029.20 : 622,543.80 = 415,029.20 : x - Step 2: Convert to fraction form
415,029.20/622,543.80 = 415,029.20/x - Step 3: Cross multiply
415,029.20x = 622,543.80 × 415,029.20 - Step 4: Simplify right side
415,029.20x = 258,373,855,278.96 - Step 5: Solve for x
x = 258,373,855,278.96/415,029.20 - Step 6: Final answer
x = 622,543.80
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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.