Home / 1,079,765.60-1,619,648.40-764,578.40

Finding the Fourth Proportional to 1,079,765.60, 1,619,648.40 and 764,578.40

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Solution

The fourth proportional to 1,079,765.60, 1,619,648.40 and 764,578.40 is: 1,146,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,765.60 : 1,619,648.40 = 764,578.40 : x
  2. Step 2: Convert to fraction form
    1,079,765.60/1,619,648.40 = 764,578.40/x
  3. Step 3: Cross multiply
    1,079,765.60x = 1,619,648.40 × 764,578.40
  4. Step 4: Simplify right side
    1,079,765.60x = 1,238,348,182,234.56
  5. Step 5: Solve for x
    x = 1,238,348,182,234.56/1,079,765.60
  6. Step 6: Final answer
    x = 1,146,867.60

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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.