Finding the Fourth Proportional to 783,883.12, 1,081,737.84 and 444,350.56
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Solution
The fourth proportional to 783,883.12, 1,081,737.84 and 444,350.56 is: 613,191.94
Step by Step Solution
- Step 1: Write the proportion equation
783,883.12 : 1,081,737.84 = 444,350.56 : x - Step 2: Convert to fraction form
783,883.12/1,081,737.84 = 444,350.56/x - Step 3: Cross multiply
783,883.12x = 1,081,737.84 × 444,350.56 - Step 4: Simplify right side
783,883.12x = 480,670,814,977.19 - Step 5: Solve for x
x = 480,670,814,977.19/783,883.12 - Step 6: Final answer
x = 613,191.94
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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.