Finding the Fourth Proportional to 853.52, 1,177.08 and 558.68
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Solution
The fourth proportional to 853.52, 1,177.08 and 558.68 is: 770.47
Step by Step Solution
- Step 1: Write the proportion equation
853.52 : 1,177.08 = 558.68 : x - Step 2: Convert to fraction form
853.52/1,177.08 = 558.68/x - Step 3: Cross multiply
853.52x = 1,177.08 × 558.68 - Step 4: Simplify right side
853.52x = 657,611.05 - Step 5: Solve for x
x = 657,611.05/853.52 - Step 6: Final answer
x = 770.47
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1.5x scale
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.