Finding the Fourth Proportional to 668,324.64, 922,202.76 and 381,863.28
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Solution
The fourth proportional to 668,324.64, 922,202.76 and 381,863.28 is: 526,922.62
Step by Step Solution
- Step 1: Write the proportion equation
668,324.64 : 922,202.76 = 381,863.28 : x - Step 2: Convert to fraction form
668,324.64/922,202.76 = 381,863.28/x - Step 3: Cross multiply
668,324.64x = 922,202.76 × 381,863.28 - Step 4: Simplify right side
668,324.64x = 352,155,370,758.65 - Step 5: Solve for x
x = 352,155,370,758.65/668,324.64 - Step 6: Final answer
x = 526,922.62
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1.5x scale
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.