Finding the Fourth Proportional to 531,123.54, 796,920.84 and 278,343.96
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Solution
The fourth proportional to 531,123.54, 796,920.84 and 278,343.96 is: 417,639.37
Step by Step Solution
- Step 1: Write the proportion equation
531,123.54 : 796,920.84 = 278,343.96 : x - Step 2: Convert to fraction form
531,123.54/796,920.84 = 278,343.96/x - Step 3: Cross multiply
531,123.54x = 796,920.84 × 278,343.96 - Step 4: Simplify right side
531,123.54x = 221,818,102,412.13 - Step 5: Solve for x
x = 221,818,102,412.13/531,123.54 - Step 6: Final answer
x = 417,639.37
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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.