Finding the Fourth Proportional to 466,287.20, 699,430.80 and 430,857.80
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Solution
The fourth proportional to 466,287.20, 699,430.80 and 430,857.80 is: 646,286.70
Step by Step Solution
- Step 1: Write the proportion equation
466,287.20 : 699,430.80 = 430,857.80 : x - Step 2: Convert to fraction form
466,287.20/699,430.80 = 430,857.80/x - Step 3: Cross multiply
466,287.20x = 699,430.80 × 430,857.80 - Step 4: Simplify right side
466,287.20x = 301,355,215,740.24 - Step 5: Solve for x
x = 301,355,215,740.24/466,287.20 - Step 6: Final answer
x = 646,286.70
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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.