Finding the Fourth Proportional to 2,512,449.20, 3,768,673.80 and 2,122,725.80
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Solution
The fourth proportional to 2,512,449.20, 3,768,673.80 and 2,122,725.80 is: 3,184,088.70
Step by Step Solution
- Step 1: Write the proportion equation
2,512,449.20 : 3,768,673.80 = 2,122,725.80 : x - Step 2: Convert to fraction form
2,512,449.20/3,768,673.80 = 2,122,725.80/x - Step 3: Cross multiply
2,512,449.20x = 3,768,673.80 × 2,122,725.80 - Step 4: Simplify right side
2,512,449.20x = 7,999,861,107,044.04 - Step 5: Solve for x
x = 7,999,861,107,044.04/2,512,449.20 - Step 6: Final answer
x = 3,184,088.70
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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.