Finding the Fourth Proportional to 987,231.13, 1,480,846.71 and 239,277.13
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Solution
The fourth proportional to 987,231.13, 1,480,846.71 and 239,277.13 is: 358,915.70
Step by Step Solution
- Step 1: Write the proportion equation
987,231.13 : 1,480,846.71 = 239,277.13 : x - Step 2: Convert to fraction form
987,231.13/1,480,846.71 = 239,277.13/x - Step 3: Cross multiply
987,231.13x = 1,480,846.71 × 239,277.13 - Step 4: Simplify right side
987,231.13x = 354,332,750,738.74 - Step 5: Solve for x
x = 354,332,750,738.74/987,231.13 - Step 6: Final answer
x = 358,915.70
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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.