Finding the Fourth Proportional to 1,919,879.31, 2,879,984.34 and 499,937.97
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Solution
The fourth proportional to 1,919,879.31, 2,879,984.34 and 499,937.97 is: 749,950.02
Step by Step Solution
- Step 1: Write the proportion equation
1,919,879.31 : 2,879,984.34 = 499,937.97 : x - Step 2: Convert to fraction form
1,919,879.31/2,879,984.34 = 499,937.97/x - Step 3: Cross multiply
1,919,879.31x = 2,879,984.34 × 499,937.97 - Step 4: Simplify right side
1,919,879.31x = 1,439,813,524,571.39 - Step 5: Solve for x
x = 1,439,813,524,571.39/1,919,879.31 - Step 6: Final answer
x = 749,950.02
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1.5x scale
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.