Finding the Fourth Proportional to 480,393.86, 720,673.70 and 196,238.75
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Solution
The fourth proportional to 480,393.86, 720,673.70 and 196,238.75 is: 294,391.99
Step by Step Solution
- Step 1: Write the proportion equation
480,393.86 : 720,673.70 = 196,238.75 : x - Step 2: Convert to fraction form
480,393.86/720,673.70 = 196,238.75/x - Step 3: Cross multiply
480,393.86x = 720,673.70 × 196,238.75 - Step 4: Simplify right side
480,393.86x = 141,424,101,461.31 - Step 5: Solve for x
x = 141,424,101,461.31/480,393.86 - Step 6: Final answer
x = 294,391.99
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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.