Home / 764,988.64-1,147,476.06-285,200.12

Finding the Fourth Proportional to 764,988.64, 1,147,476.06 and 285,200.12

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Solution

The fourth proportional to 764,988.64, 1,147,476.06 and 285,200.12 is: 427,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,988.64 : 1,147,476.06 = 285,200.12 : x
  2. Step 2: Convert to fraction form
    764,988.64/1,147,476.06 = 285,200.12/x
  3. Step 3: Cross multiply
    764,988.64x = 1,147,476.06 × 285,200.12
  4. Step 4: Simplify right side
    764,988.64x = 327,260,312,877.82
  5. Step 5: Solve for x
    x = 327,260,312,877.82/764,988.64
  6. Step 6: Final answer
    x = 427,797.61

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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.