Finding the Fourth Proportional to 728,405.10, 1,092,720.12 and 248,520.42
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Solution
The fourth proportional to 728,405.10, 1,092,720.12 and 248,520.42 is: 372,819.00
Step by Step Solution
- Step 1: Write the proportion equation
728,405.10 : 1,092,720.12 = 248,520.42 : x - Step 2: Convert to fraction form
728,405.10/1,092,720.12 = 248,520.42/x - Step 3: Cross multiply
728,405.10x = 1,092,720.12 × 248,520.42 - Step 4: Simplify right side
728,405.10x = 271,563,263,164.85 - Step 5: Solve for x
x = 271,563,263,164.85/728,405.10 - Step 6: Final answer
x = 372,819.00
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1.5x scale
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.