Finding the Fourth Proportional to 555,040.72, 765,958.44 and 300,391.84
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Solution
The fourth proportional to 555,040.72, 765,958.44 and 300,391.84 is: 414,541.95
Step by Step Solution
- Step 1: Write the proportion equation
555,040.72 : 765,958.44 = 300,391.84 : x - Step 2: Convert to fraction form
555,040.72/765,958.44 = 300,391.84/x - Step 3: Cross multiply
555,040.72x = 765,958.44 × 300,391.84 - Step 4: Simplify right side
555,040.72x = 230,087,665,155.13 - Step 5: Solve for x
x = 230,087,665,155.13/555,040.72 - Step 6: Final answer
x = 414,541.95
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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.