Finding the Fourth Proportional to 762,378.76, 1,052,208.66 and 422,956.36
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Solution
The fourth proportional to 762,378.76, 1,052,208.66 and 422,956.36 is: 583,749.66
Step by Step Solution
- Step 1: Write the proportion equation
762,378.76 : 1,052,208.66 = 422,956.36 : x - Step 2: Convert to fraction form
762,378.76/1,052,208.66 = 422,956.36/x - Step 3: Cross multiply
762,378.76x = 1,052,208.66 × 422,956.36 - Step 4: Simplify right side
762,378.76x = 445,038,344,794.08 - Step 5: Solve for x
x = 445,038,344,794.08/762,378.76 - Step 6: Final answer
x = 583,749.66
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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.