Finding the Fourth Proportional to 491,307.20, 677,996.08 and 276,447.14
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Solution
The fourth proportional to 491,307.20, 677,996.08 and 276,447.14 is: 381,492.63
Step by Step Solution
- Step 1: Write the proportion equation
491,307.20 : 677,996.08 = 276,447.14 : x - Step 2: Convert to fraction form
491,307.20/677,996.08 = 276,447.14/x - Step 3: Cross multiply
491,307.20x = 677,996.08 × 276,447.14 - Step 4: Simplify right side
491,307.20x = 187,430,073,166.11 - Step 5: Solve for x
x = 187,430,073,166.11/491,307.20 - Step 6: Final answer
x = 381,492.63
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1.5x scale
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.