Finding the Fourth Proportional to 881,638.44, 1,216,660.68 and 479,230.44
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Solution
The fourth proportional to 881,638.44, 1,216,660.68 and 479,230.44 is: 661,337.81
Step by Step Solution
- Step 1: Write the proportion equation
881,638.44 : 1,216,660.68 = 479,230.44 : x - Step 2: Convert to fraction form
881,638.44/1,216,660.68 = 479,230.44/x - Step 3: Cross multiply
881,638.44x = 1,216,660.68 × 479,230.44 - Step 4: Simplify right side
881,638.44x = 583,060,833,007.10 - Step 5: Solve for x
x = 583,060,833,007.10/881,638.44 - Step 6: Final answer
x = 661,337.81
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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.