Finding the Fourth Proportional to 987,492.75, 1,481,239.74 and 239,538.75
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Solution
The fourth proportional to 987,492.75, 1,481,239.74 and 239,538.75 is: 359,308.27
Step by Step Solution
- Step 1: Write the proportion equation
987,492.75 : 1,481,239.74 = 239,538.75 : x - Step 2: Convert to fraction form
987,492.75/1,481,239.74 = 239,538.75/x - Step 3: Cross multiply
987,492.75x = 1,481,239.74 × 239,538.75 - Step 4: Simplify right side
987,492.75x = 354,814,315,769.93 - Step 5: Solve for x
x = 354,814,315,769.93/987,492.75 - Step 6: Final answer
x = 359,308.27
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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.