Finding the Fourth Proportional to 559,170.40, 771,687.56 and 421,102.08
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Solution
The fourth proportional to 559,170.40, 771,687.56 and 421,102.08 is: 581,145.28
Step by Step Solution
- Step 1: Write the proportion equation
559,170.40 : 771,687.56 = 421,102.08 : x - Step 2: Convert to fraction form
559,170.40/771,687.56 = 421,102.08/x - Step 3: Cross multiply
559,170.40x = 771,687.56 × 421,102.08 - Step 4: Simplify right side
559,170.40x = 324,959,236,626.13 - Step 5: Solve for x
x = 324,959,236,626.13/559,170.40 - Step 6: Final answer
x = 581,145.28
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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.