Finding the Fourth Proportional to 1,257,408.76, 1,886,113.76 and 415,960.52
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Solution
The fourth proportional to 1,257,408.76, 1,886,113.76 and 415,960.52 is: 623,940.99
Step by Step Solution
- Step 1: Write the proportion equation
1,257,408.76 : 1,886,113.76 = 415,960.52 : x - Step 2: Convert to fraction form
1,257,408.76/1,886,113.76 = 415,960.52/x - Step 3: Cross multiply
1,257,408.76x = 1,886,113.76 × 415,960.52 - Step 4: Simplify right side
1,257,408.76x = 784,548,860,388.76 - Step 5: Solve for x
x = 784,548,860,388.76/1,257,408.76 - Step 6: Final answer
x = 623,940.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.