Home / 764,850.80-1,146,887.40-449,404.40

Finding the Fourth Proportional to 764,850.80, 1,146,887.40 and 449,404.40

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Solution

The fourth proportional to 764,850.80, 1,146,887.40 and 449,404.40 is: 673,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,850.80 : 1,146,887.40 = 449,404.40 : x
  2. Step 2: Convert to fraction form
    764,850.80/1,146,887.40 = 449,404.40/x
  3. Step 3: Cross multiply
    764,850.80x = 1,146,887.40 × 449,404.40
  4. Step 4: Simplify right side
    764,850.80x = 515,416,243,864.56
  5. Step 5: Solve for x
    x = 515,416,243,864.56/764,850.80
  6. Step 6: Final answer
    x = 673,878.15

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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.