Finding the Fourth Proportional to 1,767,067.20, 2,438,485.74 and 1,079,888.28
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Solution
The fourth proportional to 1,767,067.20, 2,438,485.74 and 1,079,888.28 is: 1,490,204.88
Step by Step Solution
- Step 1: Write the proportion equation
1,767,067.20 : 2,438,485.74 = 1,079,888.28 : x - Step 2: Convert to fraction form
1,767,067.20/2,438,485.74 = 1,079,888.28/x - Step 3: Cross multiply
1,767,067.20x = 2,438,485.74 × 1,079,888.28 - Step 4: Simplify right side
1,767,067.20x = 2,633,292,171,573.13 - Step 5: Solve for x
x = 2,633,292,171,573.13/1,767,067.20 - Step 6: Final answer
x = 1,490,204.88
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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.