Finding the Fourth Proportional to 1,557,963.48, 2,149,977.42 and 842,571.48
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Solution
The fourth proportional to 1,557,963.48, 2,149,977.42 and 842,571.48 is: 1,162,742.05
Step by Step Solution
- Step 1: Write the proportion equation
1,557,963.48 : 2,149,977.42 = 842,571.48 : x - Step 2: Convert to fraction form
1,557,963.48/2,149,977.42 = 842,571.48/x - Step 3: Cross multiply
1,557,963.48x = 2,149,977.42 × 842,571.48 - Step 4: Simplify right side
1,557,963.48x = 1,811,509,656,735.98 - Step 5: Solve for x
x = 1,811,509,656,735.98/1,557,963.48 - Step 6: Final answer
x = 1,162,742.05
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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.