Finding the Fourth Proportional to 987,230.20, 1,480,845.36 and 239,276.20
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Solution
The fourth proportional to 987,230.20, 1,480,845.36 and 239,276.20 is: 358,914.31
Step by Step Solution
- Step 1: Write the proportion equation
987,230.20 : 1,480,845.36 = 239,276.20 : x - Step 2: Convert to fraction form
987,230.20/1,480,845.36 = 239,276.20/x - Step 3: Cross multiply
987,230.20x = 1,480,845.36 × 239,276.20 - Step 4: Simplify right side
987,230.20x = 354,331,050,528.43 - Step 5: Solve for x
x = 354,331,050,528.43/987,230.20 - Step 6: Final answer
x = 358,914.31
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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.