Home / 764,280.80-1,146,129.60-231,624.80

Finding the Fourth Proportional to 764,280.80, 1,146,129.60 and 231,624.80

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Solution

The fourth proportional to 764,280.80, 1,146,129.60 and 231,624.80 is: 347,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,280.80 : 1,146,129.60 = 231,624.80 : x
  2. Step 2: Convert to fraction form
    764,280.80/1,146,129.60 = 231,624.80/x
  3. Step 3: Cross multiply
    764,280.80x = 1,146,129.60 × 231,624.80
  4. Step 4: Simplify right side
    764,280.80x = 265,472,039,374.08
  5. Step 5: Solve for x
    x = 265,472,039,374.08/764,280.80
  6. Step 6: Final answer
    x = 347,348.83

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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.