Finding the Fourth Proportional to 987,292.75, 1,480,939.14 and 239,338.75
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Solution
The fourth proportional to 987,292.75, 1,480,939.14 and 239,338.75 is: 359,008.13
Step by Step Solution
- Step 1: Write the proportion equation
987,292.75 : 1,480,939.14 = 239,338.75 : x - Step 2: Convert to fraction form
987,292.75/1,480,939.14 = 239,338.75/x - Step 3: Cross multiply
987,292.75x = 1,480,939.14 × 239,338.75 - Step 4: Simplify right side
987,292.75x = 354,446,122,593.68 - Step 5: Solve for x
x = 354,446,122,593.68/987,292.75 - Step 6: Final answer
x = 359,008.13
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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.