Home / 764,426.40-1,146,639.60-231,921.60

Finding the Fourth Proportional to 764,426.40, 1,146,639.60 and 231,921.60

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Solution

The fourth proportional to 764,426.40, 1,146,639.60 and 231,921.60 is: 347,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,426.40 : 1,146,639.60 = 231,921.60 : x
  2. Step 2: Convert to fraction form
    764,426.40/1,146,639.60 = 231,921.60/x
  3. Step 3: Cross multiply
    764,426.40x = 1,146,639.60 × 231,921.60
  4. Step 4: Simplify right side
    764,426.40x = 265,930,490,655.36
  5. Step 5: Solve for x
    x = 265,930,490,655.36/764,426.40
  6. Step 6: Final answer
    x = 347,882.40

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Double scale
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Similar ratio
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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.