Finding the Fourth Proportional to 691,785.96, 954,668.14 and 381,699.26
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Solution
The fourth proportional to 691,785.96, 954,668.14 and 381,699.26 is: 526,746.92
Step by Step Solution
- Step 1: Write the proportion equation
691,785.96 : 954,668.14 = 381,699.26 : x - Step 2: Convert to fraction form
691,785.96/954,668.14 = 381,699.26/x - Step 3: Cross multiply
691,785.96x = 954,668.14 × 381,699.26 - Step 4: Simplify right side
691,785.96x = 364,396,122,583.58 - Step 5: Solve for x
x = 364,396,122,583.58/691,785.96 - Step 6: Final answer
x = 526,746.92
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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.