Finding the Fourth Proportional to 854.79, 1,282.55 and 546.99
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Solution
The fourth proportional to 854.79, 1,282.55 and 546.99 is: 820.72
Step by Step Solution
- Step 1: Write the proportion equation
854.79 : 1,282.55 = 546.99 : x - Step 2: Convert to fraction form
854.79/1,282.55 = 546.99/x - Step 3: Cross multiply
854.79x = 1,282.55 × 546.99 - Step 4: Simplify right side
854.79x = 701,539.29 - Step 5: Solve for x
x = 701,539.29/854.79 - Step 6: Final answer
x = 820.72
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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.