Finding the Fourth Proportional to 517,234.16, 713,378.36 and 353,987.44
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Solution
The fourth proportional to 517,234.16, 713,378.36 and 353,987.44 is: 488,225.64
Step by Step Solution
- Step 1: Write the proportion equation
517,234.16 : 713,378.36 = 353,987.44 : x - Step 2: Convert to fraction form
517,234.16/713,378.36 = 353,987.44/x - Step 3: Cross multiply
517,234.16x = 713,378.36 × 353,987.44 - Step 4: Simplify right side
517,234.16x = 252,526,979,407.80 - Step 5: Solve for x
x = 252,526,979,407.80/517,234.16 - Step 6: Final answer
x = 488,225.64
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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.