Finding the Fourth Proportional to 839,879.28, 1,259,807.99 and 208,798.56
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Solution
The fourth proportional to 839,879.28, 1,259,807.99 and 208,798.56 is: 313,195.12
Step by Step Solution
- Step 1: Write the proportion equation
839,879.28 : 1,259,807.99 = 208,798.56 : x - Step 2: Convert to fraction form
839,879.28/1,259,807.99 = 208,798.56/x - Step 3: Cross multiply
839,879.28x = 1,259,807.99 × 208,798.56 - Step 4: Simplify right side
839,879.28x = 263,046,093,144.50 - Step 5: Solve for x
x = 263,046,093,144.50/839,879.28 - Step 6: Final answer
x = 313,195.12
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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.