Home / 764,905.60-1,147,358.40-512,963.20

Finding the Fourth Proportional to 764,905.60, 1,147,358.40 and 512,963.20

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Solution

The fourth proportional to 764,905.60, 1,147,358.40 and 512,963.20 is: 769,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,905.60 : 1,147,358.40 = 512,963.20 : x
  2. Step 2: Convert to fraction form
    764,905.60/1,147,358.40 = 512,963.20/x
  3. Step 3: Cross multiply
    764,905.60x = 1,147,358.40 × 512,963.20
  4. Step 4: Simplify right side
    764,905.60x = 588,552,636,410.88
  5. Step 5: Solve for x
    x = 588,552,636,410.88/764,905.60
  6. Step 6: Final answer
    x = 769,444.80

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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.