Finding the Fourth Proportional to 687,536.39, 948,785.92 and 381,594.82
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Solution
The fourth proportional to 687,536.39, 948,785.92 and 381,594.82 is: 526,592.92
Step by Step Solution
- Step 1: Write the proportion equation
687,536.39 : 948,785.92 = 381,594.82 : x - Step 2: Convert to fraction form
687,536.39/948,785.92 = 381,594.82/x - Step 3: Cross multiply
687,536.39x = 948,785.92 × 381,594.82 - Step 4: Simplify right side
687,536.39x = 362,051,792,360.93 - Step 5: Solve for x
x = 362,051,792,360.93/687,536.39 - Step 6: Final answer
x = 526,592.92
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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.