Finding the Fourth Proportional to 639,418.26, 882,334.26 and 352,919.76
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Solution
The fourth proportional to 639,418.26, 882,334.26 and 352,919.76 is: 486,994.53
Step by Step Solution
- Step 1: Write the proportion equation
639,418.26 : 882,334.26 = 352,919.76 : x - Step 2: Convert to fraction form
639,418.26/882,334.26 = 352,919.76/x - Step 3: Cross multiply
639,418.26x = 882,334.26 × 352,919.76 - Step 4: Simplify right side
639,418.26x = 311,393,195,278.98 - Step 5: Solve for x
x = 311,393,195,278.98/639,418.26 - Step 6: Final answer
x = 486,994.53
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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.