Finding the Fourth Proportional to 438,052.20, 657,078.30 and 413,557.80
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Solution
The fourth proportional to 438,052.20, 657,078.30 and 413,557.80 is: 620,336.70
Step by Step Solution
- Step 1: Write the proportion equation
438,052.20 : 657,078.30 = 413,557.80 : x - Step 2: Convert to fraction form
438,052.20/657,078.30 = 413,557.80/x - Step 3: Cross multiply
438,052.20x = 657,078.30 × 413,557.80 - Step 4: Simplify right side
438,052.20x = 271,739,856,175.74 - Step 5: Solve for x
x = 271,739,856,175.74/438,052.20 - Step 6: Final answer
x = 620,336.70
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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.