Finding the Fourth Proportional to 1,557,418.88, 2,149,238.06 and 842,026.88
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Solution
The fourth proportional to 1,557,418.88, 2,149,238.06 and 842,026.88 is: 1,161,997.09
Step by Step Solution
- Step 1: Write the proportion equation
1,557,418.88 : 2,149,238.06 = 842,026.88 : x - Step 2: Convert to fraction form
1,557,418.88/2,149,238.06 = 842,026.88/x - Step 3: Cross multiply
1,557,418.88x = 2,149,238.06 × 842,026.88 - Step 4: Simplify right side
1,557,418.88x = 1,809,716,203,082.73 - Step 5: Solve for x
x = 1,809,716,203,082.73/1,557,418.88 - Step 6: Final answer
x = 1,161,997.09
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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.