Finding the Fourth Proportional to 879.09, 1,213.07 and 524.99
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Solution
The fourth proportional to 879.09, 1,213.07 and 524.99 is: 724.43
Step by Step Solution
- Step 1: Write the proportion equation
879.09 : 1,213.07 = 524.99 : x - Step 2: Convert to fraction form
879.09/1,213.07 = 524.99/x - Step 3: Cross multiply
879.09x = 1,213.07 × 524.99 - Step 4: Simplify right side
879.09x = 636,840.93 - Step 5: Solve for x
x = 636,840.93/879.09 - Step 6: Final answer
x = 724.43
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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.