Home / 764,217.12-1,145,308.45-404,311.16

Finding the Fourth Proportional to 764,217.12, 1,145,308.45 and 404,311.16

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Solution

The fourth proportional to 764,217.12, 1,145,308.45 and 404,311.16 is: 605,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,217.12 : 1,145,308.45 = 404,311.16 : x
  2. Step 2: Convert to fraction form
    764,217.12/1,145,308.45 = 404,311.16/x
  3. Step 3: Cross multiply
    764,217.12x = 1,145,308.45 × 404,311.16
  4. Step 4: Simplify right side
    764,217.12x = 463,060,987,639.11
  5. Step 5: Solve for x
    x = 463,060,987,639.11/764,217.12
  6. Step 6: Final answer
    x = 605,928.57

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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.