Finding the Fourth Proportional to 4,159,679.40, 6,239,519.10 and 2,789,742.60
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Solution
The fourth proportional to 4,159,679.40, 6,239,519.10 and 2,789,742.60 is: 4,184,613.90
Step by Step Solution
- Step 1: Write the proportion equation
4,159,679.40 : 6,239,519.10 = 2,789,742.60 : x - Step 2: Convert to fraction form
4,159,679.40/6,239,519.10 = 2,789,742.60/x - Step 3: Cross multiply
4,159,679.40x = 6,239,519.10 × 2,789,742.60 - Step 4: Simplify right side
4,159,679.40x = 17,406,652,236,783.66 - Step 5: Solve for x
x = 17,406,652,236,783.66/4,159,679.40 - Step 6: Final answer
x = 4,184,613.90
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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.