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Finding the Fourth Proportional to 512,213.40, 766,764.90 and 456,226.20

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Solution

The fourth proportional to 512,213.40, 766,764.90 and 456,226.20 is: 682,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,213.40 : 766,764.90 = 456,226.20 : x
  2. Step 2: Convert to fraction form
    512,213.40/766,764.90 = 456,226.20/x
  3. Step 3: Cross multiply
    512,213.40x = 766,764.90 × 456,226.20
  4. Step 4: Simplify right side
    512,213.40x = 349,818,236,620.38
  5. Step 5: Solve for x
    x = 349,818,236,620.38/512,213.40
  6. Step 6: Final answer
    x = 682,954.09

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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.