Home / 764,939.20-1,147,639.20-410,123.20

Finding the Fourth Proportional to 764,939.20, 1,147,639.20 and 410,123.20

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Solution

The fourth proportional to 764,939.20, 1,147,639.20 and 410,123.20 is: 615,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,939.20 : 1,147,639.20 = 410,123.20 : x
  2. Step 2: Convert to fraction form
    764,939.20/1,147,639.20 = 410,123.20/x
  3. Step 3: Cross multiply
    764,939.20x = 1,147,639.20 × 410,123.20
  4. Step 4: Simplify right side
    764,939.20x = 470,673,461,149.44
  5. Step 5: Solve for x
    x = 470,673,461,149.44/764,939.20
  6. Step 6: Final answer
    x = 615,308.33

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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.