Finding the Fourth Proportional to 814,131.68, 1,122,203.58 and 641,768.56
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Solution
The fourth proportional to 814,131.68, 1,122,203.58 and 641,768.56 is: 884,617.31
Step by Step Solution
- Step 1: Write the proportion equation
814,131.68 : 1,122,203.58 = 641,768.56 : x - Step 2: Convert to fraction form
814,131.68/1,122,203.58 = 641,768.56/x - Step 3: Cross multiply
814,131.68x = 1,122,203.58 × 641,768.56 - Step 4: Simplify right side
814,131.68x = 720,194,975,563.45 - Step 5: Solve for x
x = 720,194,975,563.45/814,131.68 - Step 6: Final answer
x = 884,617.31
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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.