Finding the Fourth Proportional to 670,700.44, 925,171.68 and 421,946.07
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Solution
The fourth proportional to 670,700.44, 925,171.68 and 421,946.07 is: 582,037.12
Step by Step Solution
- Step 1: Write the proportion equation
670,700.44 : 925,171.68 = 421,946.07 : x - Step 2: Convert to fraction form
670,700.44/925,171.68 = 421,946.07/x - Step 3: Cross multiply
670,700.44x = 925,171.68 × 421,946.07 - Step 4: Simplify right side
670,700.44x = 390,372,554,451.30 - Step 5: Solve for x
x = 390,372,554,451.30/670,700.44 - Step 6: Final answer
x = 582,037.12
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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.