Finding the Fourth Proportional to 498,086.28, 687,355.81 and 283,226.36
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Solution
The fourth proportional to 498,086.28, 687,355.81 and 283,226.36 is: 390,850.53
Step by Step Solution
- Step 1: Write the proportion equation
498,086.28 : 687,355.81 = 283,226.36 : x - Step 2: Convert to fraction form
498,086.28/687,355.81 = 283,226.36/x - Step 3: Cross multiply
498,086.28x = 687,355.81 × 283,226.36 - Step 4: Simplify right side
498,086.28x = 194,677,284,091.15 - Step 5: Solve for x
x = 194,677,284,091.15/498,086.28 - Step 6: Final answer
x = 390,850.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.