Finding the Fourth Proportional to 491,321.70, 677,995.52 and 276,448.95
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Solution
The fourth proportional to 491,321.70, 677,995.52 and 276,448.95 is: 381,483.55
Step by Step Solution
- Step 1: Write the proportion equation
491,321.70 : 677,995.52 = 276,448.95 : x - Step 2: Convert to fraction form
491,321.70/677,995.52 = 276,448.95/x - Step 3: Cross multiply
491,321.70x = 677,995.52 × 276,448.95 - Step 4: Simplify right side
491,321.70x = 187,431,148,226.46 - Step 5: Solve for x
x = 187,431,148,226.46/491,321.70 - Step 6: Final answer
x = 381,483.55
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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.