Finding the Fourth Proportional to 1,542,658.14, 2,128,868.22 and 939,046.14
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Solution
The fourth proportional to 1,542,658.14, 2,128,868.22 and 939,046.14 is: 1,295,883.67
Step by Step Solution
- Step 1: Write the proportion equation
1,542,658.14 : 2,128,868.22 = 939,046.14 : x - Step 2: Convert to fraction form
1,542,658.14/2,128,868.22 = 939,046.14/x - Step 3: Cross multiply
1,542,658.14x = 2,128,868.22 × 939,046.14 - Step 4: Simplify right side
1,542,658.14x = 1,999,105,484,559.67 - Step 5: Solve for x
x = 1,999,105,484,559.67/1,542,658.14 - Step 6: Final answer
x = 1,295,883.67
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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.