Finding the Fourth Proportional to 1,621,251.20, 2,432,138.16 and 499,319.84
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Solution
The fourth proportional to 1,621,251.20, 2,432,138.16 and 499,319.84 is: 749,060.25
Step by Step Solution
- Step 1: Write the proportion equation
1,621,251.20 : 2,432,138.16 = 499,319.84 : x - Step 2: Convert to fraction form
1,621,251.20/2,432,138.16 = 499,319.84/x - Step 3: Cross multiply
1,621,251.20x = 2,432,138.16 × 499,319.84 - Step 4: Simplify right side
1,621,251.20x = 1,214,414,836,909.09 - Step 5: Solve for x
x = 1,214,414,836,909.09/1,621,251.20 - Step 6: Final answer
x = 749,060.25
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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.