Finding the Fourth Proportional to 491,295.28, 677,950.68 and 276,393.76
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Solution
The fourth proportional to 491,295.28, 677,950.68 and 276,393.76 is: 381,402.68
Step by Step Solution
- Step 1: Write the proportion equation
491,295.28 : 677,950.68 = 276,393.76 : x - Step 2: Convert to fraction form
491,295.28/677,950.68 = 276,393.76/x - Step 3: Cross multiply
491,295.28x = 677,950.68 × 276,393.76 - Step 4: Simplify right side
491,295.28x = 187,381,337,539.76 - Step 5: Solve for x
x = 187,381,337,539.76/491,295.28 - Step 6: Final answer
x = 381,402.68
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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.