Home / 764,983.90-1,147,585.20-259,568.20

Finding the Fourth Proportional to 764,983.90, 1,147,585.20 and 259,568.20

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Solution

The fourth proportional to 764,983.90, 1,147,585.20 and 259,568.20 is: 389,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,983.90 : 1,147,585.20 = 259,568.20 : x
  2. Step 2: Convert to fraction form
    764,983.90/1,147,585.20 = 259,568.20/x
  3. Step 3: Cross multiply
    764,983.90x = 1,147,585.20 × 259,568.20
  4. Step 4: Simplify right side
    764,983.90x = 297,876,624,710.64
  5. Step 5: Solve for x
    x = 297,876,624,710.64/764,983.90
  6. Step 6: Final answer
    x = 389,389.40

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Double scale
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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.