Finding the Fourth Proportional to 755,818.18, 1,133,720.21 and 306,432.23
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Solution
The fourth proportional to 755,818.18, 1,133,720.21 and 306,432.23 is: 459,645.48
Step by Step Solution
- Step 1: Write the proportion equation
755,818.18 : 1,133,720.21 = 306,432.23 : x - Step 2: Convert to fraction form
755,818.18/1,133,720.21 = 306,432.23/x - Step 3: Cross multiply
755,818.18x = 1,133,720.21 × 306,432.23 - Step 4: Simplify right side
755,818.18x = 347,408,407,243.85 - Step 5: Solve for x
x = 347,408,407,243.85/755,818.18 - Step 6: Final answer
x = 459,645.48
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1.5x scale
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.