Home / 764,025.40-1,145,201.10-384,340.60

Finding the Fourth Proportional to 764,025.40, 1,145,201.10 and 384,340.60

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Solution

The fourth proportional to 764,025.40, 1,145,201.10 and 384,340.60 is: 576,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,025.40 : 1,145,201.10 = 384,340.60 : x
  2. Step 2: Convert to fraction form
    764,025.40/1,145,201.10 = 384,340.60/x
  3. Step 3: Cross multiply
    764,025.40x = 1,145,201.10 × 384,340.60
  4. Step 4: Simplify right side
    764,025.40x = 440,147,277,894.66
  5. Step 5: Solve for x
    x = 440,147,277,894.66/764,025.40
  6. Step 6: Final answer
    x = 576,089.85

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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.