Finding the Fourth Proportional to 1,296,860.24, 1,789,660.30 and 753,129.72
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Solution
The fourth proportional to 1,296,860.24, 1,789,660.30 and 753,129.72 is: 1,039,315.05
Step by Step Solution
- Step 1: Write the proportion equation
1,296,860.24 : 1,789,660.30 = 753,129.72 : x - Step 2: Convert to fraction form
1,296,860.24/1,789,660.30 = 753,129.72/x - Step 3: Cross multiply
1,296,860.24x = 1,789,660.30 × 753,129.72 - Step 4: Simplify right side
1,296,860.24x = 1,347,846,360,634.12 - Step 5: Solve for x
x = 1,347,846,360,634.12/1,296,860.24 - Step 6: Final answer
x = 1,039,315.05
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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.