Finding the Fourth Proportional to 1,121,958.01, 1,548,307.74 and 612,660.43
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Solution
The fourth proportional to 1,121,958.01, 1,548,307.74 and 612,660.43 is: 845,474.50
Step by Step Solution
- Step 1: Write the proportion equation
1,121,958.01 : 1,548,307.74 = 612,660.43 : x - Step 2: Convert to fraction form
1,121,958.01/1,548,307.74 = 612,660.43/x - Step 3: Cross multiply
1,121,958.01x = 1,548,307.74 × 612,660.43 - Step 4: Simplify right side
1,121,958.01x = 948,586,885,760.73 - Step 5: Solve for x
x = 948,586,885,760.73/1,121,958.01 - Step 6: Final answer
x = 845,474.50
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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.