Finding the Fourth Proportional to 646,457.76, 969,087.96 and 330,217.20
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Solution
The fourth proportional to 646,457.76, 969,087.96 and 330,217.20 is: 495,019.99
Step by Step Solution
- Step 1: Write the proportion equation
646,457.76 : 969,087.96 = 330,217.20 : x - Step 2: Convert to fraction form
646,457.76/969,087.96 = 330,217.20/x - Step 3: Cross multiply
646,457.76x = 969,087.96 × 330,217.20 - Step 4: Simplify right side
646,457.76x = 320,009,512,704.91 - Step 5: Solve for x
x = 320,009,512,704.91/646,457.76 - Step 6: Final answer
x = 495,019.99
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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.