Finding the Fourth Proportional to 775,958.13, 1,163,986.40 and 243,500.17
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Solution
The fourth proportional to 775,958.13, 1,163,986.40 and 243,500.17 is: 365,265.70
Step by Step Solution
- Step 1: Write the proportion equation
775,958.13 : 1,163,986.40 = 243,500.17 : x - Step 2: Convert to fraction form
775,958.13/1,163,986.40 = 243,500.17/x - Step 3: Cross multiply
775,958.13x = 1,163,986.40 × 243,500.17 - Step 4: Simplify right side
775,958.13x = 283,430,886,277.69 - Step 5: Solve for x
x = 283,430,886,277.69/775,958.13 - Step 6: Final answer
x = 365,265.70
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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.