Finding the Fourth Proportional to 1,912,469.58, 2,638,402.79 and 1,266,768.77
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Solution
The fourth proportional to 1,912,469.58, 2,638,402.79 and 1,266,768.77 is: 1,747,607.53
Step by Step Solution
- Step 1: Write the proportion equation
1,912,469.58 : 2,638,402.79 = 1,266,768.77 : x - Step 2: Convert to fraction form
1,912,469.58/2,638,402.79 = 1,266,768.77/x - Step 3: Cross multiply
1,912,469.58x = 2,638,402.79 × 1,266,768.77 - Step 4: Simplify right side
1,912,469.58x = 3,342,246,247,027.78 - Step 5: Solve for x
x = 3,342,246,247,027.78/1,912,469.58 - Step 6: Final answer
x = 1,747,607.53
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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.