Finding the Fourth Proportional to 691,057.49, 1,036,638.71 and 235,507.14
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Solution
The fourth proportional to 691,057.49, 1,036,638.71 and 235,507.14 is: 353,278.59
Step by Step Solution
- Step 1: Write the proportion equation
691,057.49 : 1,036,638.71 = 235,507.14 : x - Step 2: Convert to fraction form
691,057.49/1,036,638.71 = 235,507.14/x - Step 3: Cross multiply
691,057.49x = 1,036,638.71 × 235,507.14 - Step 4: Simplify right side
691,057.49x = 244,135,817,805.39 - Step 5: Solve for x
x = 244,135,817,805.39/691,057.49 - Step 6: Final answer
x = 353,278.59
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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.