Home / 766,738.20-1,150,107.30-346,834.20

Finding the Fourth Proportional to 766,738.20, 1,150,107.30 and 346,834.20

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Solution

The fourth proportional to 766,738.20, 1,150,107.30 and 346,834.20 is: 520,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,738.20 : 1,150,107.30 = 346,834.20 : x
  2. Step 2: Convert to fraction form
    766,738.20/1,150,107.30 = 346,834.20/x
  3. Step 3: Cross multiply
    766,738.20x = 1,150,107.30 × 346,834.20
  4. Step 4: Simplify right side
    766,738.20x = 398,896,545,309.66
  5. Step 5: Solve for x
    x = 398,896,545,309.66/766,738.20
  6. Step 6: Final answer
    x = 520,251.30

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Double scale
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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.