Finding the Fourth Proportional to 4,119,432.60, 6,179,609.70 and 1,279,522.20
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Solution
The fourth proportional to 4,119,432.60, 6,179,609.70 and 1,279,522.20 is: 1,919,426.43
Step by Step Solution
- Step 1: Write the proportion equation
4,119,432.60 : 6,179,609.70 = 1,279,522.20 : x - Step 2: Convert to fraction form
4,119,432.60/6,179,609.70 = 1,279,522.20/x - Step 3: Cross multiply
4,119,432.60x = 6,179,609.70 × 1,279,522.20 - Step 4: Simplify right side
4,119,432.60x = 7,906,947,798,485.34 - Step 5: Solve for x
x = 7,906,947,798,485.34/4,119,432.60 - Step 6: Final answer
x = 1,919,426.43
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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.