Finding the Fourth Proportional to 777,716.26, 1,073,248.56 and 420,020.26
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Solution
The fourth proportional to 777,716.26, 1,073,248.56 and 420,020.26 is: 579,628.02
Step by Step Solution
- Step 1: Write the proportion equation
777,716.26 : 1,073,248.56 = 420,020.26 : x - Step 2: Convert to fraction form
777,716.26/1,073,248.56 = 420,020.26/x - Step 3: Cross multiply
777,716.26x = 1,073,248.56 × 420,020.26 - Step 4: Simplify right side
777,716.26x = 450,786,139,215.83 - Step 5: Solve for x
x = 450,786,139,215.83/777,716.26 - Step 6: Final answer
x = 579,628.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.