Finding the Fourth Proportional to 921,087.36, 1,381,352.40 and 321,936.84
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Solution
The fourth proportional to 921,087.36, 1,381,352.40 and 321,936.84 is: 482,807.87
Step by Step Solution
- Step 1: Write the proportion equation
921,087.36 : 1,381,352.40 = 321,936.84 : x - Step 2: Convert to fraction form
921,087.36/1,381,352.40 = 321,936.84/x - Step 3: Cross multiply
921,087.36x = 1,381,352.40 × 321,936.84 - Step 4: Simplify right side
921,087.36x = 444,708,226,582.42 - Step 5: Solve for x
x = 444,708,226,582.42/921,087.36 - Step 6: Final answer
x = 482,807.87
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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.