Finding the Fourth Proportional to 1,286,305.62, 1,929,474.75 and 487,372.56
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Solution
The fourth proportional to 1,286,305.62, 1,929,474.75 and 487,372.56 is: 731,065.02
Step by Step Solution
- Step 1: Write the proportion equation
1,286,305.62 : 1,929,474.75 = 487,372.56 : x - Step 2: Convert to fraction form
1,286,305.62/1,929,474.75 = 487,372.56/x - Step 3: Cross multiply
1,286,305.62x = 1,929,474.75 × 487,372.56 - Step 4: Simplify right side
1,286,305.62x = 940,373,048,362.86 - Step 5: Solve for x
x = 940,373,048,362.86/1,286,305.62 - Step 6: Final answer
x = 731,065.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.