Finding the Fourth Proportional to 681,823.64, 940,708.11 and 395,286.55
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Solution
The fourth proportional to 681,823.64, 940,708.11 and 395,286.55 is: 545,374.55
Step by Step Solution
- Step 1: Write the proportion equation
681,823.64 : 940,708.11 = 395,286.55 : x - Step 2: Convert to fraction form
681,823.64/940,708.11 = 395,286.55/x - Step 3: Cross multiply
681,823.64x = 940,708.11 × 395,286.55 - Step 4: Simplify right side
681,823.64x = 371,849,263,358.92 - Step 5: Solve for x
x = 371,849,263,358.92/681,823.64 - Step 6: Final answer
x = 545,374.55
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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.