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Finding the Fourth Proportional to 452,096.80, 678,145.20 and 262,880.80

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Solution

The fourth proportional to 452,096.80, 678,145.20 and 262,880.80 is: 394,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,096.80 : 678,145.20 = 262,880.80 : x
  2. Step 2: Convert to fraction form
    452,096.80/678,145.20 = 262,880.80/x
  3. Step 3: Cross multiply
    452,096.80x = 678,145.20 × 262,880.80
  4. Step 4: Simplify right side
    452,096.80x = 178,271,352,692.16
  5. Step 5: Solve for x
    x = 178,271,352,692.16/452,096.80
  6. Step 6: Final answer
    x = 394,321.20

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Similar ratio
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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.