Finding the Fourth Proportional to 3,420,814.01, 5,130,391.58 and 1,425,181.37
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Solution
The fourth proportional to 3,420,814.01, 5,130,391.58 and 1,425,181.37 is: 2,137,426.49
Step by Step Solution
- Step 1: Write the proportion equation
3,420,814.01 : 5,130,391.58 = 1,425,181.37 : x - Step 2: Convert to fraction form
3,420,814.01/5,130,391.58 = 1,425,181.37/x - Step 3: Cross multiply
3,420,814.01x = 5,130,391.58 × 1,425,181.37 - Step 4: Simplify right side
3,420,814.01x = 7,311,738,493,494.96 - Step 5: Solve for x
x = 7,311,738,493,494.96/3,420,814.01 - Step 6: Final answer
x = 2,137,426.49
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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.