Home / 764,451.20-1,146,907.20-409,635.20

Finding the Fourth Proportional to 764,451.20, 1,146,907.20 and 409,635.20

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Solution

The fourth proportional to 764,451.20, 1,146,907.20 and 409,635.20 is: 614,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,451.20 : 1,146,907.20 = 409,635.20 : x
  2. Step 2: Convert to fraction form
    764,451.20/1,146,907.20 = 409,635.20/x
  3. Step 3: Cross multiply
    764,451.20x = 1,146,907.20 × 409,635.20
  4. Step 4: Simplify right side
    764,451.20x = 469,813,560,253.44
  5. Step 5: Solve for x
    x = 469,813,560,253.44/764,451.20
  6. Step 6: Final answer
    x = 614,576.26

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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.