Finding the Fourth Proportional to 1,013.26, 1,519.62 and 436
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Solution
The fourth proportional to 1,013.26, 1,519.62 and 436 is: 653.88
Step by Step Solution
- Step 1: Write the proportion equation
1,013.26 : 1,519.62 = 436 : x - Step 2: Convert to fraction form
1,013.26/1,519.62 = 436/x - Step 3: Cross multiply
1,013.26x = 1,519.62 × 436 - Step 4: Simplify right side
1,013.26x = 662,554.32 - Step 5: Solve for x
x = 662,554.32/1,013.26 - Step 6: Final answer
x = 653.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.