Finding the Fourth Proportional to 1,128,658.76, 1,557,568.14 and 619,408.52
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Solution
The fourth proportional to 1,128,658.76, 1,557,568.14 and 619,408.52 is: 854,794.21
Step by Step Solution
- Step 1: Write the proportion equation
1,128,658.76 : 1,557,568.14 = 619,408.52 : x - Step 2: Convert to fraction form
1,128,658.76/1,557,568.14 = 619,408.52/x - Step 3: Cross multiply
1,128,658.76x = 1,557,568.14 × 619,408.52 - Step 4: Simplify right side
1,128,658.76x = 964,770,976,396.55 - Step 5: Solve for x
x = 964,770,976,396.55/1,128,658.76 - Step 6: Final answer
x = 854,794.21
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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.