Finding the Fourth Proportional to 3,220,742.58, 4,444,679.98 and 1,770,499.14
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Solution
The fourth proportional to 3,220,742.58, 4,444,679.98 and 1,770,499.14 is: 2,443,319.17
Step by Step Solution
- Step 1: Write the proportion equation
3,220,742.58 : 4,444,679.98 = 1,770,499.14 : x - Step 2: Convert to fraction form
3,220,742.58/4,444,679.98 = 1,770,499.14/x - Step 3: Cross multiply
3,220,742.58x = 4,444,679.98 × 1,770,499.14 - Step 4: Simplify right side
3,220,742.58x = 7,869,302,082,165.22 - Step 5: Solve for x
x = 7,869,302,082,165.22/3,220,742.58 - Step 6: Final answer
x = 2,443,319.17
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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.