Finding the Fourth Proportional to 1,062.08, 1,465.36 and 620
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Solution
The fourth proportional to 1,062.08, 1,465.36 and 620 is: 855.42
Step by Step Solution
- Step 1: Write the proportion equation
1,062.08 : 1,465.36 = 620 : x - Step 2: Convert to fraction form
1,062.08/1,465.36 = 620/x - Step 3: Cross multiply
1,062.08x = 1,465.36 × 620 - Step 4: Simplify right side
1,062.08x = 908,523.20 - Step 5: Solve for x
x = 908,523.20/1,062.08 - Step 6: Final answer
x = 855.42
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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.