Finding the Fourth Proportional to 422,377.05, 582,901.34 and 261,315.84
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Solution
The fourth proportional to 422,377.05, 582,901.34 and 261,315.84 is: 360,628.86
Step by Step Solution
- Step 1: Write the proportion equation
422,377.05 : 582,901.34 = 261,315.84 : x - Step 2: Convert to fraction form
422,377.05/582,901.34 = 261,315.84/x - Step 3: Cross multiply
422,377.05x = 582,901.34 × 261,315.84 - Step 4: Simplify right side
422,377.05x = 152,321,354,178.53 - Step 5: Solve for x
x = 152,321,354,178.53/422,377.05 - Step 6: Final answer
x = 360,628.86
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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.