Home / 764,428.80-1,146,351.60-231,772.80

Finding the Fourth Proportional to 764,428.80, 1,146,351.60 and 231,772.80

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Solution

The fourth proportional to 764,428.80, 1,146,351.60 and 231,772.80 is: 347,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,428.80 : 1,146,351.60 = 231,772.80 : x
  2. Step 2: Convert to fraction form
    764,428.80/1,146,351.60 = 231,772.80/x
  3. Step 3: Cross multiply
    764,428.80x = 1,146,351.60 × 231,772.80
  4. Step 4: Simplify right side
    764,428.80x = 265,693,120,116.48
  5. Step 5: Solve for x
    x = 265,693,120,116.48/764,428.80
  6. Step 6: Final answer
    x = 347,570.79

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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.