Finding the Fourth Proportional to 1,422,744.80, 2,131,747.64 and 1,001,134.80
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Solution
The fourth proportional to 1,422,744.80, 2,131,747.64 and 1,001,134.80 is: 1,500,034.83
Step by Step Solution
- Step 1: Write the proportion equation
1,422,744.80 : 2,131,747.64 = 1,001,134.80 : x - Step 2: Convert to fraction form
1,422,744.80/2,131,747.64 = 1,001,134.80/x - Step 3: Cross multiply
1,422,744.80x = 2,131,747.64 × 1,001,134.80 - Step 4: Simplify right side
1,422,744.80x = 2,134,166,747,221.87 - Step 5: Solve for x
x = 2,134,166,747,221.87/1,422,744.80 - Step 6: Final answer
x = 1,500,034.83
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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.