Home / 764,301.24-1,146,639.76-380,231.44

Finding the Fourth Proportional to 764,301.24, 1,146,639.76 and 380,231.44

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Solution

The fourth proportional to 764,301.24, 1,146,639.76 and 380,231.44 is: 570,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,301.24 : 1,146,639.76 = 380,231.44 : x
  2. Step 2: Convert to fraction form
    764,301.24/1,146,639.76 = 380,231.44/x
  3. Step 3: Cross multiply
    764,301.24x = 1,146,639.76 × 380,231.44
  4. Step 4: Simplify right side
    764,301.24x = 435,988,487,106.05
  5. Step 5: Solve for x
    x = 435,988,487,106.05/764,301.24
  6. Step 6: Final answer
    x = 570,440.64

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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.