Finding the Fourth Proportional to 968.99, 1,452.87 and 420.75
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Solution
The fourth proportional to 968.99, 1,452.87 and 420.75 is: 630.86
Step by Step Solution
- Step 1: Write the proportion equation
968.99 : 1,452.87 = 420.75 : x - Step 2: Convert to fraction form
968.99/1,452.87 = 420.75/x - Step 3: Cross multiply
968.99x = 1,452.87 × 420.75 - Step 4: Simplify right side
968.99x = 611,295.05 - Step 5: Solve for x
x = 611,295.05/968.99 - Step 6: Final answer
x = 630.86
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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.