Finding the Fourth Proportional to 755,818.37, 1,133,720.49 and 306,432.42
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Solution
The fourth proportional to 755,818.37, 1,133,720.49 and 306,432.42 is: 459,645.77
Step by Step Solution
- Step 1: Write the proportion equation
755,818.37 : 1,133,720.49 = 306,432.42 : x - Step 2: Convert to fraction form
755,818.37/1,133,720.49 = 306,432.42/x - Step 3: Cross multiply
755,818.37x = 1,133,720.49 × 306,432.42 - Step 4: Simplify right side
755,818.37x = 347,408,713,354.29 - Step 5: Solve for x
x = 347,408,713,354.29/755,818.37 - Step 6: Final answer
x = 459,645.77
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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.