Finding the Fourth Proportional to 752,174.43, 1,128,427.74 and 278,859.84
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Solution
The fourth proportional to 752,174.43, 1,128,427.74 and 278,859.84 is: 418,351.34
Step by Step Solution
- Step 1: Write the proportion equation
752,174.43 : 1,128,427.74 = 278,859.84 : x - Step 2: Convert to fraction form
752,174.43/1,128,427.74 = 278,859.84/x - Step 3: Cross multiply
752,174.43x = 1,128,427.74 × 278,859.84 - Step 4: Simplify right side
752,174.43x = 314,673,179,027.96 - Step 5: Solve for x
x = 314,673,179,027.96/752,174.43 - Step 6: Final answer
x = 418,351.34
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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.