Finding the Fourth Proportional to 739,519.10, 1,107,310.35 and 471,830.30
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Solution
The fourth proportional to 739,519.10, 1,107,310.35 and 471,830.30 is: 706,489.63
Step by Step Solution
- Step 1: Write the proportion equation
739,519.10 : 1,107,310.35 = 471,830.30 : x - Step 2: Convert to fraction form
739,519.10/1,107,310.35 = 471,830.30/x - Step 3: Cross multiply
739,519.10x = 1,107,310.35 × 471,830.30 - Step 4: Simplify right side
739,519.10x = 522,462,574,633.61 - Step 5: Solve for x
x = 522,462,574,633.61/739,519.10 - Step 6: Final answer
x = 706,489.63
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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.