Finding the Fourth Proportional to 638,378.24, 880,922.40 and 351,883.52
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Solution
The fourth proportional to 638,378.24, 880,922.40 and 351,883.52 is: 485,577.45
Step by Step Solution
- Step 1: Write the proportion equation
638,378.24 : 880,922.40 = 351,883.52 : x - Step 2: Convert to fraction form
638,378.24/880,922.40 = 351,883.52/x - Step 3: Cross multiply
638,378.24x = 880,922.40 × 351,883.52 - Step 4: Simplify right side
638,378.24x = 309,982,074,958.85 - Step 5: Solve for x
x = 309,982,074,958.85/638,378.24 - Step 6: Final answer
x = 485,577.45
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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.