Finding the Fourth Proportional to 670,818.24, 1,006,013.88 and 221,455.44
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Solution
The fourth proportional to 670,818.24, 1,006,013.88 and 221,455.44 is: 332,112.68
Step by Step Solution
- Step 1: Write the proportion equation
670,818.24 : 1,006,013.88 = 221,455.44 : x - Step 2: Convert to fraction form
670,818.24/1,006,013.88 = 221,455.44/x - Step 3: Cross multiply
670,818.24x = 1,006,013.88 × 221,455.44 - Step 4: Simplify right side
670,818.24x = 222,787,246,441.51 - Step 5: Solve for x
x = 222,787,246,441.51/670,818.24 - Step 6: Final answer
x = 332,112.68
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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.