Finding the Fourth Proportional to 987,514.80, 1,481,272.20 and 239,560.80
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Solution
The fourth proportional to 987,514.80, 1,481,272.20 and 239,560.80 is: 359,341.20
Step by Step Solution
- Step 1: Write the proportion equation
987,514.80 : 1,481,272.20 = 239,560.80 : x - Step 2: Convert to fraction form
987,514.80/1,481,272.20 = 239,560.80/x - Step 3: Cross multiply
987,514.80x = 1,481,272.20 × 239,560.80 - Step 4: Simplify right side
987,514.80x = 354,854,753,249.76 - Step 5: Solve for x
x = 354,854,753,249.76/987,514.80 - Step 6: Final answer
x = 359,341.20
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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.