Finding the Fourth Proportional to 823,920.42, 1,236,056.97 and 255,288.87
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Solution
The fourth proportional to 823,920.42, 1,236,056.97 and 255,288.87 is: 382,987.94
Step by Step Solution
- Step 1: Write the proportion equation
823,920.42 : 1,236,056.97 = 255,288.87 : x - Step 2: Convert to fraction form
823,920.42/1,236,056.97 = 255,288.87/x - Step 3: Cross multiply
823,920.42x = 1,236,056.97 × 255,288.87 - Step 4: Simplify right side
823,920.42x = 315,551,587,126.92 - Step 5: Solve for x
x = 315,551,587,126.92/823,920.42 - Step 6: Final answer
x = 382,987.94
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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.